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NICE-POWER DC Power Supply Variable, 0-400V 0-1A High Voltage Bench Power Supply with Memory Storage & Encoder Knob, Adjustable Regulated Lab Power Supply with Output Switch Lock Button Color Display7.8Our score 4 photos
NBrandNICE-POWERNNICE-POWER4 products in our catalogSee all NICE-POWER products →ID DBD-18361

NICE-POWER DC Power Supply Variable, 0-400V 0-1A High Voltage Bench Power Supply with Memory Storage & Encoder Knob, Adjustable Regulated Lab Power Supply with Output Switch Lock Button Color Display

7.8/10 our score 3.9 (9 ratings on Amazon)

Designed for High-Voltage Applications: 0–400V 0–1A output at 400W rated power — reaching voltage levels beyond standard low-voltage supplie

Form FactorBench

About this item

  • Designed for High-Voltage Applications: 0–400V 0–1A output at 400W rated power — reaching voltage levels beyond standard low-voltage supplies and handling workloads that low-power supplies cannot. Ideal for vacuum tube amplifier repair and electrolytic capacitor re-forming, new-energy and automotive electronics testing, battery pack and series-connected battery charge/discharge, photovoltaic inverters, automated test equipment (ATE), and semiconductor testing etc
  • Storage Memory, Output Switch: DC power supply variable with four sets of data storage function buttons M1-M4, can save four sets of commonly used voltage and current value combinations, recalled at any time, no need to repeat the input. The output switch controls the output of the DC power supply to prevent damage to the load
  • Encoder Adjustment Knob, Lock Button: The encoder knob helps you to adjust the voltage and current quickly and precisely. Press the knob to determine the number of digits to be adjusted, then rotate the button to adjust the desired voltage/current value. The DC power supply LOCK button prevents re-adjustment by accidentally touching other buttons
  • High Precision, 4-Digit Color Display: The DC Power Supply 400V 1A features a high resolution of 0.01V and 0.001A, and our DC power supply voltage is adjustable up to 400V. The lab power supply's 4-digit, backlit, colour LCD display provides a more accurate, clearly visible reading of voltage and current values
Category: PC Parts › Power SuppliesRanked #99 of 616 in PC Parts
7.8Our score
Our verdict

Designed for High-Voltage Applications: 0–400V 0–1A output at 400W rated power — reaching voltage levels beyond standard low-voltage supplie

Ranked #99 in PC Parts · 4 things we like

Designed for High-Voltage Applications: 0–400V 0–1A output at 400W rated power — reaching voltage levels beyond standard low-voltage supplies and handling workloads that low-power supplies cannot. Ideal for vacuum tube amplifier repair and electrolytic capacitor re-forming, new-energy and automotive electronics testing, battery pack and series-connected battery charge/discharge, photovoltaic inverters, automated test equipment (ATE), and semiconductor testing etc Storage Memory, Output Switch: DC power supply variable with four sets of data storage function buttons M1-M4, can save four sets of commonly used voltage and current value combinations, recalled at any time, no need to repeat the input. The output switch controls the output of the DC power supply to prevent damage to the load Encoder Adjustment Knob, Lock Button: The encoder knob helps you to adjust the voltage and current quic

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Product information

16 specifications
Compatible DevicesElectronics, Batteries, Laboratory Equipment
Output Wattage400 watts
Form FactorBench
Wattage400 watts
Cooling MethodAir
Current Rating1 A
Number of Fans1
Maximum Input Voltage127 volts_of_alternating_current
Minimum Input Voltage120 volts_of_alternating_current
Model NameSPPS-D4001-232
BrandNICE-POWER
Number of Items1
Model NumberSPPS-D4001
Mfr Part NumberFUTI-SPPS-D305
Warranty Description12 months
Fan Count1

Pros & cons

What we like
  • Designed for High-Voltage Applications: 0–400V 0–1A output at 400W rated power — reaching voltage levels beyond standard low-voltage supplies and handling workloads that low-power supplies cannot. Ideal for vacuum tube amplifier repair and electrolytic capacitor re-forming, new-energy and automotive electronics testing, battery pack and series-connected battery charge/discharge, photovoltaic inverters, automated test equipment (ATE), and semiconductor testing etc
  • Storage Memory, Output Switch: DC power supply variable with four sets of data storage function buttons M1-M4, can save four sets of commonly used voltage and current value combinations, recalled at any time, no need to repeat the input. The output switch controls the output of the DC power supply to prevent damage to the load
  • Encoder Adjustment Knob, Lock Button: The encoder knob helps you to adjust the voltage and current quickly and precisely. Press the knob to determine the number of digits to be adjusted, then rotate the button to adjust the desired voltage/current value. The DC power supply LOCK button prevents re-adjustment by accidentally touching other buttons
  • High Precision, 4-Digit Color Display: The DC Power Supply 400V 1A features a high resolution of 0.01V and 0.001A, and our DC power supply voltage is adjustable up to 400V. The lab power supply's 4-digit, backlit, colour LCD display provides a more accurate, clearly visible reading of voltage and current values
What could be better

    Customer reviews

    All reviews on Amazon
    3.99 global ratings
    5 star67%
    4 star0%
    3 star0%
    2 star0%
    1 star33%

    Breakdown from the 3 most helpful reviews we imported.

    A
    Amazon Customer
    Verified purchaseAugust 4, 2025
    Works very well to re-form capacitors

    This 400v dc power supply is works very well. It can be used to re-form capacitors in a vacuum tube amplifier that has not been used for awhile. It is also useful to re-form capacitors that are NOS or used capacitors that have been in storage.

    Y
    Yang
    Verified purchaseJuly 23, 2025
    The 400V version cannot reach it's rated voltage

    Bought the 400V version. The voltage cannot reach 400V (once reach 345~350V ish, voltage increase extremely slow)

    J
    Johnnie Lackey
    Verified purchaseMay 26, 2025
    Worked like a champ!

    This worked great for my task. I had to resurrect a few 400V DC batteries and this little unit did amazing. Charged all 150ah of battery back from the dead and I was able to get my Enerdel battery system back up and running.

    Customer reviews are shown as published on Amazon and are not written by Do Best Deal.