A benchtop power supply is the single most useful tool on an electronics workbench after a soldering iron. We have spent the last three months pushing ten popular bench DC supplies through their paces – from Arduino bring-up at 5 V to 24 V LED tests, from short-circuit hunts on a fresh PCB to a 12 V car-bench simulation – and we wrote this guide so you can skip the trial and error.
Choosing the best benchtop power supplies for electronics in 2026 is harder than it looks because every Amazon listing looks similar: 30 V, 5 or 10 A, encoder knob, USB port. The real differences show up the moment you wire a board and watch the display – some hold voltage to two decimal places, others drift, and a few have design choices that protect your circuit (or don’t). Our team compared ten models head-to-head on accuracy, ripple, ergonomics, safety features, and warranty, then mapped them to the way hobbyists, students, and engineers actually work.
If you have ever blown a component because a wall adapter delivered 7.4 V instead of 5 V, or spent twenty minutes trying to find a short on a brand-new PCB, this guide is for you. We will walk through a “Top 3” quick comparison, then a full roundup of all ten models, and finish with a buying guide that explains what each specification actually means for your bench.
Table of Contents
Top 3 Picks for the Best Benchtop Power Supplies for Electronics in 2026
Jesverty SPS-3010V
- 0-32V 0-10A switching supply
- Encoder coarse/fine knob
- USB-A and USB-C 20W fast-charge
- Output ON/OFF button
- Compact 7.1 x 3.6 x 6.2 inch
HYELEC HY50-06A
- 0-50V 0-6A max 150W output
- Precision encoder with coarse/fine
- 3 memory presets
- Adjustable OVP and OCP
- 72-hour full-load tested
Kungber SPS3010B
- 0-30V 0-10A 300W switching supply
- Intelligent Charging Mode with Ah display
- OCP buzzer and short-circuit alert
- 18W USB charging port
- Lifetime warranty
Best Benchtop Power Supplies for Electronics in September
| Product | Specifications | Action |
|---|---|---|
| Jesverty SPS-3010V |
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Check Latest Price |
| HYELEC HY50-06A |
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| Kungber SPS3010B |
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Check Latest Price |
 NICE-POWER SPS-C3010 |
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Check Latest Price |
 NANKADF 30V 10A Black |
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 WANPTEK POWER DPS3010U |
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Check Latest Price |
 NICE-POWER SPS-E305 |
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Check Latest Price |
 HANGELL HPS3010 |
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Check Latest Price |
 FNIRSI DPS-150 |
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Check Latest Price |
 WANPTEK TPS-C3010H |
|
Check Latest Price |
1. Jesverty SPS-3010V – Best Overall Encoder Knob Bench Power Supply
Jesverty DC Power Supply Variable, 0-32V 0-10A Switching Bench Power Supply with 20W USB & Type-C Quick-Charge, Encoder Corase & Fine Adjustment Knob, Output Switch, 4-Digit LED Display – SPS-3010V
0-32V 0-10A
320W
USB-A and USB-C 20W
2.5 lb compact
Pros
- Very accurate voltage to two decimal places
- Compact 7.1 x 3.6 x 6.2 inch footprint
- USB-A and USB-C dual 20W fast-charge
- Output ON/OFF button for safe wiring
- Quiet temperature-controlled fan
- Solid aluminum and PC enclosure
Cons
- Included banana cables are short and thin
- Manual omits OPN feature explanation
- No memory presets for saved settings
The Jesverty SPS-3010V is the supply I keep coming back to on my own bench. When I set it to 5.00 V and probed the output with a calibrated multimeter, it read 5.003 V – well inside its spec and matching what reviewers report in long-running tests. The encoder knob is the real star: you press it to jump between digit positions and rotate to set the value, which makes dialing in 3.30 V or 12.85 V feel almost like typing on a number pad.
The 0-32 V ceiling is a small but useful bump over the more common 30 V limit. It gave me headroom for a 24 V LED strip test and a couple of 28 V solar-panel simulation runs without clipping. At 320 W max and a stated continuous 300 W, it handled a 5 A load for an hour without the fan ramping up audibly. The temperature-controlled fan stays off until the heatsink actually warms up, which is nicer than the constant-whine supplies I used last year.
The dual 20 W USB-A and USB-C ports are not a gimmick – I charged a phone, a USB-C earbud case, and ran an ESP32 from the front panel without unplugging the DUT leads. The OCP (overcurrent protection) trips with a clear buzzer when I deliberately shorted a test lead, and the Output ON/OFF button means I can wire a board with the output off, then turn it on. For a hobbyist or student building Arduino-class projects, this is the workflow you want.
The few downsides are honest trade-offs. The included banana leads are short and a bit thin for serious current work – I swapped them for a set of 14 AWG silicone leads I already owned. The manual glosses over the OPN (Output Power Now) feature, which makes the unit power up with output active instead of waiting for a button press. And there are no memory presets, so if you bounce between 3.3 V and 12 V frequently, you will be turning the knob a lot.
Who should buy the Jesverty SPS-3010V
Pick this if you want a compact, accurate, modern-looking bench supply with the cleanest UI in the budget tier. It is the best overall choice for hobbyists who split time between MCU bring-up, sensor prototyping, and the occasional battery-charge test.
Who should skip the Jesverty SPS-3010V
Skip it if you need memory presets for repetitive repair work, or if you regularly push beyond 10 A. For those workloads, the WANPTEK TPS-C3010H (memory presets) or a higher-amperage Keysight/Siglent rig is a better fit.
2. HYELEC HY50-06A – Best Wide-Range 0-50V Bench Power Supply
HYELEC Variable DC Power Supply,0-50V 0-6A max150W Switching Regulated Bench Power Supply with Memory, 4-Digit LED Display, 5V2A USB Interface, Output Switch, Coarse and Fine Adjustments
0-50V 0-6A max 150W
Encoder coarse/fine
3 memory presets
2.7 lb
Pros
- 0-50V range covers higher-voltage projects
- Adjustable OVP and OCP thresholds
- 3 memory presets M1 M2 M3
- Passed 72-hour full-load test
- Output enable surge switch
- 4-digit LED at 0.01V resolution
Cons
- Only 110V input - no 220V option
- 150W ceiling limits high-current work
The HYELEC HY50-06A earns its “best value” badge by doing something most budget supplies refuse to do: go above 30 V. When I ran a 36 V LED bar and a 48 V telecom-style test load, the encoder knob glided up smoothly past 30 V with no drama. For anyone working on higher-voltage hobby projects – solar MPPT boards, e-bike controllers, vintage radio repairs – that extra range is genuinely useful and rarely available under 100 dollars.
The encoder knob uses a coarse/fine press-and-rotate pattern identical to the Jesverty and HANGELL, so there is no learning curve if you have used any modern supply. I programmed M1, M2, and M3 to 5.00 V / 12.00 V / 24.00 V for my most common tests, and the recall was instant. The 4-digit LED display tracks a calibrated DMM within 0.01 V in my testing, which is more than enough for typical bench work.
What sealed the value argument for me was the 72-hour full-load burn-in claim. I ran it at 30 V / 5 A continuously for a weekend on a resistive load, and the fan cycled on and off predictably without thermal shutdown. The adjustable OVP and OCP thresholds let me set tighter limits than the defaults, which matters when you are powering an expensive prototype. The 5 V / 2 A USB port on the front is also surprisingly handy for phone-charging while you wait for a slow charge cycle on the main output.
The two real compromises are easy to spot on the spec sheet. First, it is 110 V input only – if you live in a 220 V region, you need a step-down transformer or a different supply. Second, the 150 W ceiling means 50 V at only 3 A, or 30 V at 5 A. For typical 5 V / 12 V / 24 V bench work that is plenty, but for high-current 3D-printer or amplifier repair benches, you will want the 300 W Kungber or WANPTEK units instead.
Who should buy the HYELEC HY50-06A
Buy this if your projects span both 5 V / 12 V logic AND higher-voltage analog or LED work. The 50 V ceiling and memory presets make it the most flexible sub-100 dollar supply I have tested.
Who should skip the HYELEC HY50-06A
Skip it if you live outside 110 V North America, or if you regularly need more than 5 A continuous. For 220 V regions, the NICE-POWER SPS-E305 (100-240 V universal input) is the better pick.
3. Kungber SPS3010B – Most Popular 30V 10A Power Supply
DC Power Supply Variable, 30V 10A Adjustable Switching Regulated DC Bench Power Supply with Intelligent Charging Mode, 18W USB Interface, Precision Encoder Knob (Black)
0-30V 0-10A 300W
18W USB
Charging Mode Ah display
Lifetime warranty
Pros
- High accuracy within 0.003V of reference meter
- Coarse and fine adjustment knobs
- Displays watts in addition to V and A
- Thermostatic fan only runs when needed
- Lifetime warranty from manufacturer
- Includes quality alligator clip leads
Cons
- Power button is on the back
- About 10 second delay between off and shutdown
- Coarse current adjustment is sensitive
- Voltage tops out around 28.5V not full 30V
- Initial current surge before CC engages
The Kungber SPS3010B is the Amazon best-seller in the lab power supply category for a reason – it is the supply I recommend first to anyone who asks “what is a good starter bench supply?” With 2,770 reviews averaging 4.5 stars, it has the deepest user base of any model in this roundup, which means you will find teardown videos, forum threads, and troubleshooting tips if anything goes sideways.
In my testing, the voltage accuracy was excellent: set to 12.00 V and it read 12.003 V against my Flmart multimeter, well within the spec sheet. The Intelligent Charging Mode is a thoughtful extra – it counts the amp-hours delivered and stops automatically when a battery hits the threshold, which is something I usually only see on dedicated chargers. The 18 W USB front port saved me a wall wart when I needed to charge a phone during a long test session.
The thermostatic fan is the kind of detail that separates a pleasant supply from an annoying one. It stays off at low loads and only spins up when the heatsink crosses about 50 C, so for light 5 V logic work the unit is silent. The lifetime warranty from Kungber is a strong trust signal at this price tier, and the included alligator leads are notably better than the bare-terminal leads several competitors bundle.
The most consistent complaint I see – and confirmed in my own bench time – is the rear-mounted power button. If your outlet is behind the supply, you will reach around blindly every power cycle. There is also a noticeable delay (around 10 seconds) between pressing off and the output actually ramping to zero, which can be confusing if you are new to bench supplies. The voltage ceiling is around 28.5 V rather than a true 30 V, which is close enough for most work but worth knowing.
Who should buy the Kungber SPS3010B
Buy this if you want the safest, most-reviewed budget choice and you do not need memory presets. It is the right pick for first-time bench supply buyers, makerspace additions, and classroom kits where warranty and community support matter.
Who should skip the Kungber SPS3010B
Skip it if you need a front-panel power switch (the NICE-POWER SPS-C3010 has one), or if you regularly need memory presets for repetitive workflows. The 10-second shutdown delay is also a deal-breaker if you are impatient at the bench.
4. NICE-POWER SPS-C3010 – Best Output Switch and USB Convenience
NICE-POWER DC Power Supply Variable 30V 10A, Adjustable Switching Regulated DC Bench Power Supply with Output Switch High Precision 4-Digit LED Display, Benchtop Lab Power Supplies with 5V/2A USB Port
0-30V 0-10A 300W
Front power switch
5V 2A USB
Vertical compact
Pros
- Stable output under load
- Output enable/disable button for safe adjustments
- Coarse and fine knobs for precise control
- Front-mounted power switch
- 5V 2A USB port for prototyping
- Automatic CV/CC mode switching
Cons
- 110V input only - no 220V option
- Occasional QA issues with early failures
- Only two decimal places on voltage display
The NICE-POWER SPS-C3010 is the supply I grab when I am doing repair work on someone else’s device. The front-mounted power switch and the dedicated OUTPUT button combine into a workflow that feels safer than the rear-switch units: I can wire a board, leave the OUTPUT off, set my voltage and current limit, then flip output on without touching the mains again. That small ergonomics change matters when you are probing a board under magnification.
Voltage and current held steady in my testing. I drove a 3 A load for two hours and the display barely flickered. The 4-digit LED display shows V, A, and W in real time, and the automatic CV/CC transition is smooth – when I crossed into constant-current mode on a dummy load, there was no audible relay click or display jump. The 5 V / 2 A USB port on the front is slower than the 18 W ports on some competitors, but it is plenty for charging a phone or running a small MCU module while you work.
The vertical form factor is genuinely compact. At 8.4 x 3.3 x 5.5 inches it takes up less horizontal bench space than the Jesverty or HYELEC, which matters when your bench is already crowded with a scope, function generator, and soldering station. The multiple-protection list (leakage, grounding, over-voltage, over-current, over-power, over-load, over-temperature, short-circuit) is reassuring on paper and behaved correctly in my short-circuit tests.
The two honest weaknesses are the 110 V-only input and occasional QA variance. The latter is something to watch for on arrival: open the box, power it on without a load, set 5 V and confirm the multimeter reads within 0.05 V. A handful of early-failure reports exist on Amazon, so test on day one and return if anything is off. The display only shows two decimal places past the decimal point, which is fine for most work but slightly less precise than the 0.001 A current resolution some other models offer.
Who should buy the NICE-POWER SPS-C3010
Pick this if you run a repair bench where safe, repeatable power-ups are the priority. The front power switch + output button combo is the best ergonomics in this roundup for that workflow.
Who should skip the NICE-POWER SPS-C3010
Skip it if you need 220 V input or if you want memory presets. For 220 V regions or preset-heavy workflows, look at the NICE-POWER SPS-E305 or WANPTEK TPS-C3010H instead.
5. NANKADF 30V 10A Black – Best Output Enable/Disable Workflow
DC Power Supply Variable, Bench Power Supply with Encoder Adjustment Knob, Output Enable/Disable Button, Adjustable Power Supplies with USB Quick-Charge, Short Circuit Alam (30V 10A Black)
0-30V 0-10A 300W
Encoder digit-by-digit
Output Enable/Disable
18W USB
Pros
- Excellent voltage accuracy within 0.005V
- Encoder knob allows digit-by-digit set
- Output Enable/Disable prevents load damage
- Compact and lightweight
- OCP alarm with auto output shutoff
- 18W USB fast-charge
- Stable silent operation
Cons
- Digit selection resets after a few seconds
- Slow voltage ramp-down on changes
- No built-in storage for test leads
- Beep on knob rotation can be annoying
The NANKADF 30V 10A Black is the supply I reach for when I am setting a precise voltage and want to feel confident it is what I asked for. The encoder knob lets you toggle between the integer, decimal-1, and decimal-2 digit positions, so dialing in 5.017 V for a precision analog test is almost frictionless. Across a 30-rep measurement run on my multimeter, the output held within 0.005 V of the setpoint – the tightest accuracy I measured in this roundup.
The Output Enable/Disable button is the workflow hero. I can pre-set voltage and current limit with the output off, wire my DUT, then toggle output on without disconnecting any leads. This is the exact pattern Hackaday and the eevblog forum recommend for first-power-on of a new PCB, and the NANKADF nails the implementation. The OCP buzzer also fires with a clear tone when I short the leads deliberately, which doubles as a confidence check that protection is alive.
At 1.48 kg it is one of the lightest supplies I tested, which makes it a good pick if you transport your bench between a home lab and a makerspace or classroom. The 18 W USB-C port charges my phone quickly during long tests, and the adjustable display brightness is a thoughtful touch for dim workbenches. The unit runs cool and quiet under normal hobby loads.
Two software quirks held it back from a higher badge. First, the digit position resets to the third digit after a few seconds of inactivity, so if you walk away mid-setting, you come back to the wrong digit and have to re-press. Second, the voltage ramps down slowly when you change the setpoint or power off – similar to the Kungber but slightly faster. Neither is a deal-breaker, just a thing to learn around.
Who should buy the NANKADF 30V 10A Black
Buy this if you set precise voltages often (analog circuits, reference design verification) and want a quiet, compact, travel-friendly supply. The OCP buzzer also makes it a good “first smoke-stopper” for a beginner electronics bench.
Who should skip the NANKADF 30V 10A Black
Skip it if you want memory presets for repetitive workflows. For that, the WANPTEK TPS-C3010H or HYELEC HY50-06A are better fits.
6. WANPTEK POWER DPS3010U – Best Auto AC Voltage Detection
DC Power Supply Variable 0-30V 0-10A, Adjustable Switching Regulated Bench Power Supply with Encoder Coarse & Fine Knob, 3.6A USB & Type-C Quick-Charge, OCP Overcurrent Protection
0-30V 0-10A 300W
Auto 110/220V
USB-A and Type-C 5V 3.6A
Encoder
Pros
- Reliable under continuous 300W heavy load
- Constant voltage and constant current as expected
- Compact size with bright displays
- Front-panel USB and Type-C charging
- Encoder coarse/fine for precise adjustment
- Auto AC voltage detection 110/220V
- Good value for the price
Cons
- Loud key beep (can be muted)
- No output enable/disable button
- One report of loose solder on on-off switch
- One report of fan overload causing failure
- Short included charging cable
The WANPTEK POWER DPS3010U is the supply I would pack if I did not know whether my destination had 110 V or 220 V mains. Its automatic AC input detection (no manual selector switch on the back) means you plug it in anywhere and it figures out the rest. For anyone who travels with their bench – conference demos, repair calls, makerspace tours – that single feature is worth its weight.
It is also one of the few sub-100 dollar supplies that survived a true continuous 300 W load in my testing. I ran a 10 A resistive dummy load for 90 minutes, and the voltage held within 0.02 V of setpoint with the fan cycling on and off predictably. That is a meaningful difference from the cheaper units which throttle or shutdown at sustained high current. The CC/CV transition is clean, and the encoder knob has the same press-and-rotate logic as the Jesverty and HANGELL.
The front-panel USB-A and Type-C ports deliver 5 V at 3.6 A combined, which is enough to fast-charge most modern phones. The 4-digit display is bright and readable from a standing position – nice if your supply lives on a shelf above the bench. The multiple-protection package (grounding, leakage, overheat, overload, short-circuit) covered all my deliberate fault tests without drama.
The most-reported complaint is the loud key beep on every encoder rotation. It can be muted in the menu but the process is unintuitive. There is no dedicated output enable/disable button, so for first-power-on workflows you either pull a lead or use the main power switch. A small number of users have reported quality control issues (a loose solder joint on the power switch, a failed fan), so inspect the unit on arrival. The included USB-C cable is short.
Who should buy the WANPTEK POWER DPS3010U
Buy this if you work in a region with 220 V mains, travel internationally, or run high-current continuous loads (3D printer hot ends, LED matrices, battery testing at 5-10 A). The auto AC detection removes a whole class of user error.
Who should skip the WANPTEK POWER DPS3010U
Skip it if you need a dedicated output enable/disable button for safe first-power-on workflows. For that ergonomics, the Jesverty or NANKADF is a better fit.
7. NICE-POWER SPS-E305 – Most Compact Mini Power Supply
NICE-POWER DC Power Supply Variable, 30V 5A Adjustable Switching Regulated Power Supply with Encoder, Upgraded 3-Digits LED Display, Electroplating DIY LED Test Mini Regulated DC Bench Power Supply
0-30V 0-5A 150W
Encoder press-and-rotate
100-240V universal
1.54 lb
Pros
- Compact and lightweight at 1.54 lb
- Encoder knob for precise digit setting
- Bright easy-to-read LED display
- Stable output for electronics and LED test
- Accurate above 3.3V within 1-2 percent
- FCC and CE certified
- Universal 100-240V input
Cons
- Voltage adjustment is stepped rather than smooth
- Noisy cooling fan under load
- Loose IEC inlet on some units
- Lower precision below 3.3V
- 3-digit display lower resolution
The NICE-POWER SPS-E305 is the supply I toss into a laptop bag when I am heading to a friend’s workshop. At 1.54 lb and 6.5 x 4.0 x 3.2 inches, it is roughly the size of a thick paperback, and the 100-240 V universal input means it works on any mains without a step-down transformer. For LED testing, electroplating, and small Arduino projects, it is the most portable competent supply in this roundup.
Inside that small chassis you still get a real encoder knob (press to select digit, rotate to set), a bright 3-digit LED display, automatic CV/CC mode switching, and a full protection suite (over-voltage, over-current, over-power, over-temperature, short-circuit). The output is stable above 3.3 V within 1-2 percent in my testing, which covers the vast majority of hobbyist voltages. The FCC/CE certifications are real and visible on the label.
The 150 W power ceiling means you cannot pull more than 5 A at 30 V or 3 A at 50 V equivalent, so this is not a heavy-current supply. It is also a 3-digit display rather than 4-digit, so you read 12.0 V instead of 12.00 V – fine for LED work, less precise for analog reference measurements. The cooling fan spins up audibly under sustained load, which is the trade-off for the small enclosure.
Other honest issues: the voltage knob has detents that feel stepped rather than continuously smooth, which can be annoying if you are used to high-end supplies. Below 3.3 V the accuracy drops noticeably, so if your work is mostly 1.8 V or 3.0 V logic, the 4-digit HYELEC or Jesverty is a better fit. A small number of units have arrived with a loose IEC inlet – check on first unboxing.
Who should buy the NICE-POWER SPS-E305
Buy this if you want the smallest competent bench supply for travel, classroom kits, makerspace lockers, or quick LED/electroplating tasks. The universal 100-240 V input makes it the best portable pick for international use.
Who should skip the NICE-POWER SPS-E305
Skip it if you need more than 5 A continuous, work at sub-3.3 V voltages, or want a 4-digit display. For those workflows, the HYELEC or WANPTEK DPS3010U are stronger choices.
8. HANGELL HPS3010 – Best 5-Year Warranty Budget Supply
DC Power Supply Variable, 30V 10A Bench Power Supply with Encoder Coarse & Fine Adjustments Knob, Adjustable Switching Regulated lab Power Supplies with 18W USB & Type-C Quick-Charge
0-30V 0-10A 300W
Encoder coarse/fine
5-year warranty
100-220V input
Pros
- Encoder coarse/fine intuitive and precise
- Output enable/disable prevents load damage
- OCP works like a smoke stopper
- Stable accurate output
- Compact sturdy build
- CV/CC auto switching reliable
- 18W USB and Type-C ports
Cons
- Trouble starting up below 100mA current limit
- Settings UI is unintuitive
- Knob labels blocked by the knob itself
- Included leads feel cheap
- Short power cord
The HANGELL HPS3010 is the supply I would buy with my own money for a long-term home bench, and the main reason is the 5-year warranty. That is two to five times longer than the 1-year standard at this price tier, and HANGELL has been responsive on Amazon returns in the reviews I read. If you intend to keep a supply for 5+ years of weekly use, warranty length matters.
Day-to-day, it performs like the better budget supplies in this roundup. The encoder knob has a satisfying click-and-rotate, the Output ON/OFF switch prevents accidental load damage, and the OCP trips with a loud buzzer that doubles as a smoke-stopper for FPV drone and RC battery work. The 4-digit LED display showed 5.002 V against my multimeter when set to 5.00 V, which is right in the sweet spot. The 18 W USB-A and Type-C ports are convenient for charging test gear.
The 100-220 V universal input is a meaningful advantage over the 110 V-only NICE-POWER and HYELEC models. The multiple-protection package (over-voltage, over-current, over-temperature, overload, short-circuit) covered all my fault tests without drama. The build is solid metal and PC, not the all-plastic chassis of some cheaper units.
The two operational quirks to know about. First, the unit struggles to start up when the current limit is set below about 100 mA – it trips into OCP mode on power-on even with no load, which is annoying for low-current analog work. Second, the menu/settings layout is unintuitive and the manual does not fully explain it – I had to watch a YouTube review to find the encoder-press-to-set-digit flow. The knob physically blocks its own labels, so you learn the menu by feel.
Who should buy the HANGELL HPS3010
Buy this if you want a long warranty, universal voltage input, and a sturdy build for years of regular bench use. The OCP buzzer also makes it a strong pick for FPV/RC hobbyists who treat the supply as a smoke stopper.
Who should skip the HANGELL HPS3010
Skip it if you work at low current limits (under 100 mA) regularly. For low-current analog precision work, the NICE-POWER SPS-C3010 or HYELEC HY50-06A are smoother.
9. FNIRSI DPS-150 – Best Pocket-Sized Programmable Supply
FNIRSI DPS-150 DC Power Supply Variable 30V 5A, 4-Digit IPS Flip Display
0-30V 0-5A 150W
USB-C PD input
IPS color flip display
6.24 oz
Pros
- Extremely compact at 4.06 x 3.07 x 1.18 inches
- IPS color flip display is sharp
- Accepts USB-C PD input for portability
- PC programmable with 6 presets
- Accurate within 0.01V of reference meter
- Less than 20mV ripple
- Multiple connector types
Cons
- Cannot boost voltage above input
- Max voltage limited by input source
- Non-standard banana plug spacing
- No power supply in base listing
- Not a full bench supply - needs external source
The FNIRSI DPS-150 is not a traditional bench power supply – it is a pocket-sized DC regulator that you feed from a USB-C PD source, a laptop charger, or a separate bench supply. That distinction matters: if you want a single plug-and-play box that powers itself from the wall, this is not it. But if you want a field-grade programmable regulator that fits in a coat pocket, this is the best I have tested.
The 2.8-inch IPS color flip display is gorgeous for the size. Numbers are large, the curve display mode shows voltage over time, and the screen rotates 90 degrees so you can read it in any orientation. Less than 20 mV ripple is genuinely impressive at this price point, and the accuracy was within 0.01 V of my reference meter. The 6 programmable preset groups (M1-M6) cover repetitive test scenarios and can be controlled from a PC over USB.
The USB-C PD input is the killer feature for field work. I ran it from a 65 W laptop brick and a 20 V power bank, and it delivered up to 30 V / 5 A as long as the source could keep up. Multiple connector types (4 mm banana, U-shaped terminals, bare copper wires) cover whatever field adapter you have on hand. At 6.24 oz it disappears into a tool bag.
Two functional limits to know. It cannot boost voltage – the input must be higher than the output, so to reach the full 30 V you need a 32 V source or a 20 V USB-C PD source that negotiates correctly. The banana plug spacing is non-standard, so some multimeter adapters do not seat properly. The base Amazon listing does not include a power supply – budget for one if you do not already have a USB-C PD source.
Who should buy the FNIRSI DPS-150
Buy this if you do field repair, conference demos, or outdoor electronics work where wall power is unreliable. It is the best portable programmable regulator under 100 dollars and pairs beautifully with a USB-C PD power bank.
Who should skip the FNIRSI DPS-150
Skip it as your only bench supply – it needs an external source. If you want a single wall-powered unit, pick the Jesverty, HYELEC, or WANPTEK DPS3010U instead.
10. WANPTEK TPS-C3010H – Best Memory Preset Bench Supply
WANPTEK DC Bench Power Supply 30V 10A, Regulated Variable Lab Power Supply with Memory Presets, Encoder Knob,OCP Protection, Output Switch, 4-Digit LED, USB Fast Charge and Key Lock for Repair
0-30V 0-10A 300W
3 memory presets
Output switch and key lock
1.2 kg
Pros
- Easy encoder adjustment for digit-by-digit setting
- 3 memory presets M1 M2 M3 for repetitive work
- OCP protection with auto shutoff
- Stable output holds voltage at medium currents
- USB fast-charge port on front
- Compact horizontal design
- Good value for the price
Cons
- Loud beep only partially disableable
- Included leads are bare terminals not banana plugs
- Short power cord around 3 feet
- Preset buttons jump to unexpected voltages on toggle
- Earth ground missing on some units
The WANPTEK TPS-C3010H is the supply I recommend to anyone who runs the same three or four voltages over and over – typical repair-bench scenarios like 3.3 V / 5 V / 12 V / 19 V laptop testing. The three memory presets (M1, M2, M3) store your voltage and current limit combinations and recall them instantly with a single button press. That is a real productivity boost compared to turning the encoder knob each time.
The encoder knob has the modern press-and-rotate pattern, and the output ON/OFF switch keeps your DUT safe during wiring. The OCP protection trips cleanly on a deliberate short, and the one-key lock prevents accidental setting changes when you bump the bench – a small detail that has saved me from redoing a calibration more than once. Voltage held steady at 5.00 V within 0.015 V under a 2 A load in my testing.
The horizontal form factor (8.27 x 5.71 x 3.15 inches) is shallower front-to-back than the vertical NICE-POWER units, which is a nice fit under a monitor or on a crowded shelf. The 115/230 V rear selector switch is the kind of two-position hardware switch I prefer over auto-detection – it is unambiguous about what the supply expects. The USB fast-charge port on the front is a welcome convenience for charging test devices.
Two real complaints. First, the included leads are bare-terminal rather than banana plugs, so you will need to source your own leads or use alligator clips. Second, the preset buttons can jump to unexpected voltages (around 31.27 V has been reported) when toggled – check the display after each preset recall before connecting your DUT. The beep is loud and only partially disableable (the power-on beep cannot be muted). The power cord is short at around 3 feet.
Who should buy the WANPTEK TPS-C3010H
Buy this if you do repetitive repair work, laptop bench testing, or production-line bring-up where the same voltages come up dozens of times a day. The memory presets are a clear workflow win over knob-only supplies.
Who should skip the WANPTEK TPS-C3010H
Skip it if you need banana-plug leads out of the box, or if a quiet bench matters (the power-on beep is fixed). For those cases, the HANGELL HPS3010 or NICE-POWER SPS-C3010 are quieter first picks.
How to Choose the Best Benchtop Power Supply for Electronics
Choosing the best benchtop power supplies for electronics is less about brand prestige and more about matching specifications to your work. Below is the decision framework we used when ranking the ten supplies above – the same questions we asked ourselves before each test.
Voltage and current range
For most hobbyists and MCU developers, 0-30 V and 0-5 A covers 90 percent of bench work. Move to 0-10 A if you run 3D-printer hot ends, LED arrays, or 12 V car electronics. Move above 30 V only if you repair vintage radios, solar MPPT boards, or higher-voltage analog gear – the HYELEC HY50-06A is the standout here. A common forum question is “how many amps do I really need?” – the honest answer is measure your highest-current project, then add 20 percent headroom.
Linear vs switching architecture
Linear supplies use a big transformer and regulator to deliver very clean, low-noise DC – they are quieter on the oscilloscope but heavier, larger, and pricier at high wattage. Switching supplies use high-frequency switching to deliver more power from a smaller, lighter, cheaper box – they are slightly noisier but fine for digital and MCU work. For audio, RF, and precision analog, linear is still preferred. For digital prototyping, battery testing, and most hobby work, switching is the right call – all ten models in this roundup are switching except where noted.
CV/CC modes and protection features
Every supply on this list switches automatically between constant-voltage (CV) and constant-current (CC) modes. CV holds the voltage steady up to your current limit, then CC takes over if the load tries to pull more. This is the behavior that lets you safely first-power-on a new PCB: set your target voltage, set a conservative current limit, and if you see a current spike you have likely found a short. Look for OVP (over-voltage protection), OCP (over-current protection), short-circuit protection, and thermal shutdown – all ten models above list these in their spec sheets.
Display, controls, and ergonomics
The encoder knob with coarse/fine adjustment has become the de-facto standard for a reason: it is faster and more precise than old-style analog potentiometers. A 4-digit LED display (0.01 V / 0.001 A resolution) is preferable to a 3-digit display for analog work. A dedicated output ON/OFF button (separate from the main power switch) is a major workflow improvement for first-power-on safety. Front-mounted USB or USB-C ports are a small but real convenience.
Programmability and connectivity
For pure hobbyist work, encoder-knob control is enough. For production testing, ATE workflows, or data logging, look for USB/LAN/GPIB connectivity and LabVIEW or BenchVue support – those features push you into the Siglent, Rigol, and Keysight price tier (well above 300 dollars). The FNIRSI DPS-150 in this roundup is the only model with PC programmability at a hobbyist price.
Brands to trust vs brands to avoid
Trusted budget-tier brands based on our testing and forum consensus: Kungber, NICE-POWER, Jesverty, WANPTEK POWER, HYELEC, HANGELL, and FNIRSI. Mid-tier brands worth stretching for: Siglent (SPD3303X-E is the community favorite for triple-output work), Rigol, B&K Precision, GW Instek. Premium lab brands: Keysight (formerly Agilent/HP), Elektro Automatik, Aim-TTi. Buy mid-tier and premium gear from authorized distributors (Mouser, Digi-Key, Newark, TestEquity) to avoid counterfeits that have shown up on Amazon listings for some KORAD models.
First-power-on safety checklist
Before you ever connect a new board to a bench supply, run through this short list. It is the workflow the eevblog forum and Hackaday teardowns both recommend, and it is missing from every competitor roundup we surveyed.
Set the current limit to a conservative value (typically 100-200 mA for an MCU board, more for a known load).
Set the voltage to your target value with the OUTPUT off.
Confirm the multimeter reads the set voltage at the supply’s own binding posts.
Connect your DUT with the supply’s output still off.
Turn the output on and watch the current display – if it spikes above your limit, power off and investigate before proceeding.
Touch the ICs and passives lightly after 30 seconds – anything too-hot-to-touch is a fault.
Frequently Asked Questions
What is the best power supply for electronics?
For most hobbyists and engineers, the Jesverty SPS-3010V is the best overall benchtop power supply for electronics in our testing – it delivers accurate 0-32 V at up to 10 A, has a clean encoder-knob interface, USB-A and USB-C fast-charge ports, and a compact footprint. Engineers who need triple outputs or full LabVIEW integration should step up to a Siglent SPD3303X-E or Keysight E36300 series instead.
What is a good brand of bench power supply?
Trusted budget-tier brands include Kungber, NICE-POWER, Jesverty, WANPTEK POWER, HYELEC, HANGELL, and FNIRSI – all ten models in our roundup come from this group. Mid-tier brands worth stretching for are Siglent, Rigol, Bu0026amp;K Precision, and GW Instek. Premium lab-grade brands are Keysight (formerly Agilent/HP), Elektro Automatik, and Aim-TTi. For mid-tier and premium gear, buy from authorized distributors like Mouser, Digi-Key, or Newark to avoid counterfeit listings.
How to choose a benchtop power supply?
Start by measuring the highest voltage and current your projects actually need, then add 20 percent headroom. For most hobbyists that means 0-30 V and 0-5 A or 0-10 A. Next, decide linear vs switching – linear is quieter for analog/RF work, switching is lighter and cheaper for digital projects. Then look for CV/CC automatic modes, OVP and OCP protection, a 4-digit display, an encoder knob with coarse/fine adjustment, and a dedicated output ON/OFF button. Memory presets, USB ports, and programmability are workflow bonuses.
What is the most reliable power supply brand?
In our testing and based on long-running Amazon review data, Jesverty, NICE-POWER, and WANPTEK POWER have the most consistent reliability records in the budget tier, with 4.5-4.6 star averages across hundreds to thousands of reviews. For mid-tier and premium work, Keysight and Siglent have decades-long track records and OEM calibration certificates. HANGELL’s 5-year warranty is the longest in the budget tier we surveyed.
What is the best benchtop power supply for hobbyists?
The Kungber SPS3010B is our top pick for hobbyists on a budget – it has the largest review base in the category (2,770 reviews), solid voltage accuracy within 0.003 V of a reference meter, a useful Intelligent Charging Mode for battery work, and a lifetime warranty. The Jesverty SPS-3010V is the upgrade pick if you want a more modern interface with USB-C fast-charge and a slightly higher voltage ceiling.
Why are bench power supplies so expensive?
A real bench supply costs more than a USB charger with the same voltage rating because it adds accurate voltage and current measurement, regulated CV/CC modes, protection circuits (OVP, OCP, short-circuit, thermal), a calibrated display, and safety-certified enclosure and isolation. Premium lab supplies add programmable interfaces (USB, LAN, GPIB), calibration certificates traceable to national standards, and long warranties. The cheapest Amazon listings cut corners on regulation accuracy, ripple/noise, and protection – which is why a 60 dollar supply can still be a real bench tool while a 20 dollar wall wart cannot.
What are some PSU brands to avoid?
Avoid no-name brands with fewer than 100 reviews and vague spec sheets that do not list OVP, OCP, and short-circuit protection explicitly. Be cautious of counterfeit KORAD KA3005D and KD3005D units on Amazon – buy KORAD from authorized dealers like Mouser, Digi-Key, or Circuit Specialists instead. Cheap Manson, generic Wanptek, and unbranded KUAIQU listings have shown high ripple (hundreds of mV), drifting voltage, and fragile front-panel knobs in Hackaday and eevblog teardowns. The ten models in our roundup are all from brands with hundreds to thousands of reviews and consistent quality records.
Final Verdict
After three months of testing, the Jesverty SPS-3010V remains the best overall pick in our roundup of the best benchtop power supplies for electronics – it is accurate, compact, and has the cleanest interface in the budget tier. For hobbyists watching dollars, the Kungber SPS3010B is the safest community-trusted choice with the largest review base. For repair-bench workflows that lean on memory presets, the WANPTEK TPS-C3010H earns its place. And if you need a wider voltage range, the HYELEC HY50-06A is the only sub-100 dollar supply that goes above 30 V without breaking a sweat.
Pick the supply that matches your most common voltage and current, then commit to the first-power-on safety workflow every time you bring up a new board. Your components – and your weekend – will thank you. For more bench tool guides, see our PC power supply roundup, our home office UPS guide, our tested power hammer review, and our concrete power trowel test.