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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
NICE-POWER

NICE-POWER DC Power Supply Variable 30V 10A

Bottom line: The NICE-POWER DC Power Supply Variable 30V 10A: 0.01V / 0.001A resolution on a 4-digit LED readout of volts, amps and watts; main trade-off: 110V AC input only; no 220V version of this unit.

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By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

Pros & Cons

Pros

  • ✓ 0.01V / 0.001A resolution on a 4-digit LED readout of volts, amps and watts
  • ✓ OUTPUT key lets you set voltage and current before power reaches the load
  • ✓ Automatic CV/CC switching with a mode indicator on the display
  • ✓ Over-voltage, over-current, over-temp and short-circuit protection built in
  • ✓ 2.6 lbs and 8.4 x 3.3 x 5.5 in, plus a 5V 2A USB charging port

Cons

  • ✗ 110V AC input only; no 220V version of this unit
  • ✗ Single adjustable output channel, capped at 30V and 10A
  • ✗ Knob-only setting; no keypad for typing exact values
  • ✗ Fan switches on above 122F/50C, adding noise under heavy load

Manufacturer description

The NICE-POWER DC Power Supply gives your bench a variable 0-30V, 0-10A source with readings you can trust. Its bright 4-digit LED display shows voltage, current and calculated power in real time, at a resolution of 0.01V and 0.001A, and it stays readable in a dim workspace. A dedicated OUTPUT key changes how you work. You dial in voltage and a current limit with the coarse and fine knobs while no power reaches the load, then press once to switch the output on. You don't have to unplug the device under test between adjustments. Constant-voltage and constant-current modes switch automatically…

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SpecPicks Verdict

SpecPicks scored NICE-POWER DC Power Supply Variable 30V 10A using a rating × review-volume × price-fit model applied to published specs and reviews across the accessories category. NICE-POWER's accessories lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for accessories of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

Can I use this NICE-POWER bench supply on 220V or 230V mains?

No. This model accepts only standard US 110V AC input, and NICE-POWER states that 220V input is not available. If you plug it into 220V mains you risk damaging the unit.

What output range does it cover?

The output adjusts continuously from 0 to 30V and from 0 to 10A. Coarse and fine knobs set both voltage and current. The manufacturer says to use it only within those rated ranges.

Can I set a current limit before connecting my circuit?

Yes. With the OUTPUT key off, you can set voltage and current without any power at the terminals. Press OUTPUT to energize the load. Press it again to cut power without unplugging anything.

How precise is the display?

The 4-digit backlit LED display reads to 0.01V and 0.001A. It also shows calculated power in watts, plus an indicator for whether the supply is in constant-voltage or constant-current mode.

What is included in the box?

You get the 30V 10A DC power supply, one output power cord, one input power cord and a user manual. For current warranty terms, check the product listing or contact NICE-POWER.

Key Features

  • Precise 4-digit LED Display, Auto Power Calculation: The NICE-POWER DC power supply variable is a professional switching power supply regulation device with a high resolution of 0.01V and 0.001A. The variable power supply features a big bright 4-digit LED display that shows the adjustable power supply output values of Voltage (V) / Current (A) / Power (W) in real-time. The high-definition backlit 4-digit LED display provides an accurate and clear readout for the voltage, current and power values even if you are in low-light condition
  • OUTPUT Switch Control: Sometimes we need to switch between different voltage or current outputs in experiments or work, but we often forget to turn off the output and causing damage to the load. The adjustable DC power supply OUTPUT key is designed to solve this problem, just with a single press of the added OUTPUT key, you can easily turn the output on or off. The required voltage and current can be adjusted without actual output power, which makes this benchtop DC power supply more secure and more energy saving. Also, you don't need to remove the load or turn off the power each time, making the variable DC power supply more convenient and efficient to use
  • Reliability and Safety: Safety is our priority, all lab power supplies are certified. The adjustable switching regulated power supply is built with premium electronic components and reliable circuit designs that include multiple protection functions, such as leakage, grounding terminal, over-voltage, over-current, over-power, over-load, over-temperature, short-circuit protection to ensure stable working performance and prolong the life of the adjustable DC power supply effectively. KINDLY REMIND - For safety considerations, the DC power supply comes with only 110V input which meets the US standard voltage. 220V input is NOT available for this bench power supply
  • 5V 2A USB Port, Intelligent Cooling Fan: Complaining about mobile phones or repaired devices not being charged in time? The NICE-POWER adjustable DC power supply allows you to avoid this dilemma. The variable power supply has built-in 5V 2A USB charging interface which can quickly charge any USB devices anytime. The adjustable power supply features with intelligent temperature-controlled fan and heat sink for excellent heat dissipation when the working temperature of the switching power supply exceeds 122℉/50℃, greatly reduce working noise and improving the DC regulated power supplies working efficiency and lifespan
  • Compact Design, Lightweight and Portable: The DC voltage stabilized power supplies adopt stable vertical design with the shock-absorbing rubber feet on the bottom of bench supply, making it safer and more stable when using. The size of adjustable DC power supply is 8.4*3.3*5.5 inches and the lab power supply weighs only 2.6 lbs, which is very light and portable. You can carry your bench supply in and out of various workplaces
  • Various Applications: This benchtop power supply is suitable for electronics repair, communication equipment maintenance, electrolysis, electroplating, brush plating, lamp test, aging test, burn-in test, production line test, DIY, labs, schools, laboratories scientific research and teaching etc. The NICE-POWER DC power supply is a nice choice for beginners or professional electricians and DIY electronics hobbyist

Full Specifications

BrandNICE-POWER
Wattage300 watts
Model NameSPS-C3010
Form FactorVertical
ConnectivityUSB
Model NumberSPS-C3010
CompatibilitySwitch
Connector Typeusb
Cooling MethodAir
Number of Fans1
Output Wattage300 watts
Item Dimensions3.3 x 8.4 x 5.5 inches
Mfr Part NumberUS-SPS-C3010
Number of Items1
Compatible DevicesPersonal Computer, Tablet
Connector Quantity1
Power Supply DesignFull Modular
Warranty Descriptionefficient after-sales service, technical support
Maximum Input Voltage126.5 volts
Minimum Input Voltage115 volts
Full listing titleNICE-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

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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 is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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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
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