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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
NICE-POWER

NICE-POWER DC Power Supply Variable

Bottom line: The NICE-POWER DC Power Supply Variable: Encoder knob sets each digit directly instead of hunting with a potentiometer; main trade-off: 3-digit display limits readout precision versus 4-digit lab supplies.

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

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

Pros & Cons

Pros

  • ✓ Encoder knob sets each digit directly instead of hunting with a potentiometer
  • ✓ 0.1V and 0.01A resolution across the full 0-30V / 0-5A range
  • ✓ 1.54 lb and 6.5 x 4.0 x 3.2 in, so it frees up bench space
  • ✓ Over-voltage, over-current, over-power, over-temp and short-circuit protection built in
  • ✓ 100-240V input works on both 110V and 230V outlets, FCC/CE certified

Cons

  • ✗ 3-digit display limits readout precision versus 4-digit lab supplies
  • ✗ 5A ceiling rules out higher-draw electroplating and burn-in loads
  • ✗ Fan runs whenever the unit is powered on, not just under load
  • ✗ No USB or serial port, so no logging or PC control

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SpecPicks Verdict

SpecPicks scored NICE-POWER DC Power Supply Variable using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies & cables category. NICE-POWER's power supplies & cables 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 power supplies & cables 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.

Key Features

  • Upgraded High-Precision Encoder Knob: Just "set" Voltage and Current instead of "adjust". You can press the Voltage and Current encoder knob to select the Digit you want to adjust, then rotate the knob to set the value from 0-9. Each Digit can be set easily by the accurate encoder knob. The encoder switch replaces the potentiometer switch, making your work easier, more accurate and efficient
  • Precise 3-Digit LED Display: The NICE-POWER DC bench power supply has a resolution of 0.1V and 0.01A, and you can easily adjust it in the range of 0-30V and 0-5A. The 3-digit back-lit LED display provides more accurate and clearly visible readings for the voltage and current value, even in conditions of low voltage
  • Small and Diverse Applications: Worried about the bulky power supply? This compact and sophisticated DC power supply weighs much less than a laptop at just 1.54 pounds, saving more space on your workbench. And you can use it in various scenarios such as laboratory, LED test, repair, electrolysis, burn-in test, electroplating, brush plating, electronic DIY, etc
  • Safe and Reliable to Use: Safety is our priority. The DC power supply is FCC/CE certified. When the DC power supply is powered on, the built-in fan will start working in order to effectively dissipate the heat to extend the service life, low noise and low ripple. The power supply is durable and compact. Productive work since the power supply comes multiple protection of Over-voltage, over-current, over-power, over-temperature, short-circuit powerful protection function
  • Packaging and After-Sales: 1 x DC Power Supply, 1 x Power Cord, 1x Output Load Cord, 1 x User Manual. The variable dc power supply size is 6.5*4.0*3.2 inch, Weight is 1.54lb. You can easily take the DC power supply to work. We provide a 12-month repair policy. If you have any technical questions about our power supply, please do not hesitate to contact us
  • Please note: This DC power supply input voltage range is 100~240V and can be used with 110V and 230V conditions

Full Specifications

BrandNICE-POWER
Weight1.54lb
Wattage150 watts
Model NameDC Power Supply Variable
Unit Count1 Count
Form FactorCompact box
Please noteThis DC power supply input voltage range is 100~240V and can be used with 110V and 230V conditions
Model NumberSPS-E305
CompatibilitySwitch
Built-In MediaPower Supply, Power Cord, Output Load Cord, User's Manual, Warranty Card
Connector TypeBarrel Jack or Ring Terminal
Cooling MethodAir
Number of Fans1
Output Wattage150 watts
Item Dimensions6.5 x 4 x 3.2 inches
Mfr Part NumberSPS-E305
Connector Quantity2
Number of Connectors2
Maximum Input Voltage240 volts_of_alternating_current
Minimum Input Voltage100 volts_of_direct_current
Full listing titleNICE-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

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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 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 5A Adjustable Switching Regulated Power Supply with Encoder, Upgraded 3-Digits LED Display, Electroplating DIY LED Test Mini Regulated DC Bench Power Supply
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