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NICE-POWER

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

  • Based on 337 reviews
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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

Description

The HD 3-digit LED display allows the screen to be seen clearly even in poor lighting conditions. All the working status of the lab power supply is shown in the indicator on the left side of the screen. Unlike normal knobs, the precision encoder adjustment buttons can help you set the desired value more accurately by simply pressing the knob to switch each digit and then turning the knob to set each digit in the range of 0-9. The power supply output is stable and accurate, with a voltage readback resolution of 0.1V and a current readback resolution of 0.01A. NICE-POWER is a company that focuses on the design, development, production and sales of DC voltage stabilized power supplies. The voltage stabilized power supplies produced by the company have independent intellectual property rights. NICE-POWER always puts quality and safety first and is committed to bringing convenience, creativity and happiness to every customer. Our products have been recognized by the industry and customers.

Model Name: DC Power Supply Variable


Brand: NICE-POWER


Connector Type: Barrel Jack or Ring Terminal


Output Wattage: 150 watts


Form Factor: Compact box


Wattage: 150 watts


Cooling Method: Air


Item dimensions L x W x H: 6.5 x 4 x 3.2 inches


Item Weight: 1.03 kg


Number of Connectors: 2


Connector Type Used on Cable: Barrel Jack or Ring Terminal


Output Wattage: 150 watts


Form Factor: Compact box


Wattage: 150 watts


Cooling Method: Air


Connector Quantity: 2


Current Rating: 5 A


Number of Fans: 1


Maximum Input Voltage: 240 volts_of_alternating_current


Minimum Input Voltage: 100 volts_of_direct_current


Item Dimensions: 6.5 x 4 x 3.2 inches


Item Weight: 1.03 kg


Model Name: DC Power Supply Variable


Brand: NICE-POWER


Unit Count: 1 Count


Manufacturer: NICE-POWER


UPC: 700721650651


Built-In Media: Power Supply, Power Cord, Output Load Cord, User's Manual, Warranty Card


Model Number: SPS-E305


Mfr Part Number: SPS-E305


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: within 30 days

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Great budget power supply with a small catch!
Style: 30V 5A 150W
Review Image by thai
Pros: The NICE-POWER DC power supply works flawlessly. The digital display is bright and easy to read, and it delivers accurate voltage and current stability for my electronics projects. It's incredibly compact and lightweight, making it a perfect fit for a crowded workbench. Outstanding value for the price! Cons: Everything works absolutely fine, but the cooling fan can get a bit noisy when operating under load. Verdict: Despite the minor fan noise, it performs excellently for its price point. Highly recommended for hobbyists! ... show more
Reviewed in the United States on June 23, 2026 by thai
    • Great for Electroplating and power supply for my Silver Cell.
Style: 30V 5A 150W
This puts the power where you need it, plus its light weight and compact. Started using it for electroplating but currently its growing crystals in my Silver Cell. Easy to adjust voltage and good quality for the price!
Reviewed in the United States on January 23, 2026 by NickitOff
    • Great for car audio lithium charging
Style: 30V 5A 150W
Using this to keep a 276ah LTO Scib bank in my car audio build topped off at 16v. At that voltage it will start off at 5amps and works its way down to a 0.3a trickle as the battery reaches capacity. I leave it on for weeks at a time without issue.
Reviewed in the United States on July 21, 2026 by Mike
    • Great little supply for the money
Style: 30V 5A 150W
I was hesitant to buy a cheaper bench power supply, but the huge pile of glowing reviews swayed me. I am quite happy with it. Works perfectly. Only issue I had was with very low voltage - I can't get a stable output under about 0.9V. Had to whip up a little voltage divider circuit to generate 300mV and 600mV stable for oscilloscope calibration but it was able to handle the rest of the cal range up to 17V without a problem. Comes with a decent set of output cables - banana jack with alligator clips. Wish all my equipment had this awesome blacked-out finish - I love it - looks great. ... show more
Reviewed in the United States on February 11, 2025 by Cadstar
    • Worth it!
Style: 30V 5A 150W
Excellent little power supply - needed a replacement for my bench and it is easy to use and love the current draw function. Adjusting levels is a bit different - but doesn't take long to figure it out - worth it!
Reviewed in the United States on July 3, 2025 by Jim A
    • Works well, fairly accurate, be careful with the power inlet on the back
Style: 30V 5A 150W
I needed a constant-current power supply for something I was working on, but wasn't sure how much use I would get out of one afterwards. Not wanting to spend a lot of money, I came across this supply that not only has the constant current capability I needed at the time but also a constant voltage function as well. This is the perfect size to sit with the rest of my bench equipment and looks right at home sitting on top of my bench DMMs. While the functionality of the unit is as advertised, I did have to knock off 1 star. That is for the standard IEC power inlet on the back. I at first thought I had a DOA supply but found that some IEC power cables are very loose in the socket on this supply, thus not making a good connection. I can work around it, so not a reason for me to return the supply. ... show more
Reviewed in the United States on January 23, 2025 by radiowave911
    • Learn how to use, or you won't be happy.
Style: 30V 5A 150W
At no fault of the machine; they aren't super easy to use, and you have to learn the process if using for derusting. As the reaction goes on, resistance lessens, and power needs to be adjusted, and readings will make you feel like you have no control in a way, regardless of amps set.
Reviewed in the United States on May 20, 2026 by SPC Scout
    • Works as described
Style: 30V 5A 150W
So far the output is reliable and it seems reasonably accurate. The cooling fan is rather loud but I imagine that is a necessary compromise with how small this is. We'll see how reliable and durable it is long term.
Reviewed in the United States on August 16, 2025 by Don Newman

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