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NICE-POWER DC Power Supply Variable, 0-30V 0-30A 900W High Power Bench Power Supply with Encoder Knob & Output Switch, Benchtop Adjustable Switching Regulated Power Supplies for Repair/Test(Black)
NICE-POWER

NICE-POWER DC Power Supply Variable

Bottom line: The NICE-POWER DC Power Supply Variable is a specs-and-price decision rather than a crowd-consensus one in the accessories category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

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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

  • ✓ Backed by NICE-POWER's warranty and support channels

Cons

  • ✗ Check the listed dimensions, connectors and platform compatibility against your setup before ordering
  • ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated

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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 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.

Key Features

  • PLEASE NOTE: DC power supply input voltage AC 115V ±10% 60Hz. Before powering on, carefully inspect the product specifications on the body/package to avoid irreversible damage to the power supply. Due to the design of the power supply, the front panel is only suitable for output currents up to 5A. To avoid damaging the power supply or load and output more accurately, connect the high current connector on the back of the unit for output currents above 5A. The back panel can reach the maximum current of the purchased specification: for example, if you purchase 30V 30A, the current can reach 30A by connecting the back panel high-current terminal
  • New Function Output Switch: You can set the current directly without "short circuit"! Sometimes we need to switch between different voltage or current outputs, but often we forget to unplug the previous instrument, causing it to burn out, a situation that often occurs in maintenance. The output on/off key is designed to solve this problem, press the output on/off key to adjust the required voltage and current, which makes this DC power supply more secure
  • Upgrade High-precision Encoder Knob: Just "set" voltage and current instead of "adjust". The encoder switch replaces the potentiometer switch, the digits are switched by pressing the knob and each digit can be set in the range 0-9 by turning the knob. Makes work easier and more efficient
  • Stable Output, Auto Switch C.C/C.V Mode: This variable DC power supply is a low noise, low ripple adjustable high power continuous output power supply that can work at full load for long periods of time. Constant voltage and constant current modes can be switched automatically
  • 4-Digit LED Display, Power Display: 30v 30a DC Power Supply is a professional power conditioning unit with high resolution of 0.01V and 0.001A. The backlit 4-digit LED display of the bench power supply shows the voltage current and power values more accurately and is easy to see even in low light conditions
  • Multiple Protection, Intelligent Cooling Fan, Reliable and Safe: The DC power supply has built-in overvoltage protection, overcurrent protection, overheating protection and termination protection. When the operating temperature of the DC power supply exceeds 122°F/50°C, the fan will turn on intelligently to dissipate heat effectively and extend the life of the device. DC power supply has shock absorbing rubber feet at the bottom for safer and more stable use

Full Specifications

BrandNICE-POWER
Weight3kg
Wattage900 watts
Model NameR-SPS3030
Unit Count1 Count
Form FactorBenchtop
CompatibilitySwitch
Connector TypeBanana Plug, AC Power Cord
Cooling MethodAir
Number of Fans1
Output Wattage900
Item Dimensions14.57 x 9.06 x 4.72 inches
Mfr Part NumberR-SPS3030
Number of Items1
Number of Packs1
Connector Quantity2
Power Supply DesignSemi-Modular
Warranty Description12 months
Maximum Input Voltage120 volts_of_alternating_current
Minimum Input Voltage120 volts_of_alternating_current
Full listing titleNICE-POWER DC Power Supply Variable, 0-30V 0-30A 900W High Power Bench Power Supply with Encoder Knob & Output Switch, Benchtop Adjustable Switching Regulated Power Supplies for Repair/Test(Black)

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NICE-POWER DC Power Supply Variable, 0-30V 0-30A 900W High Power Bench Power Supply with Encoder Knob & Output Switch, Benchtop Adjustable Switching Regulated Power Supplies for Repair/Test(Black) 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, 0-30V 0-30A 900W High Power Bench Power Supply with Encoder Knob & Output Switch, Benchtop Adjustable Switching Regulated Power Supplies for Repair/Test(Black)
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