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DC Power Supply Variable, Bench Power Supply with Encoder Adjustment Knob, Output Enable/Disable Button, Adjustable Power Supply with USB Quick-Charge, Short Circuit Alam (30V 10A Black)

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$43.99

$ 23 .99 $23.99

In Stock

1.Model:30v 5a Black


About this item

  • High-precision Encoder Knob: Different from general knobs, this DC power supply has a precise encoder knob. You can press the knob to switch each digit, and then turn the knob to customize each digit in the range of 0-9. Set the voltage or current you want more accurately.
  • Output Enable/Disable Button: In the process of using the bench power supply, Output button can prevent us from forgetting to turn off the output and causing damage to the load. Just press this button to turn on or turn off the output of the power supply. This makes it more convenient for you to use the variable power supply.
  • Overcurrent Protection: When the OCP function is turned on, if the load equipment is short-circuited during operation, the adjustable power supply will automatically stop output and send a buzzer to alert the user. Protect the adjustable power supply and load from damage.
  • Precise 4-digit LED Display: The dc power supply is equipped with a high-definition 4-digit display with data accurate to 0.01 V and 0.001 A. It has constant voltage (C.V.) and constant current (C.C.) modes, which can be switched automatically. You can see the working status indicator on the display. Additionally, you can adjust the brightness of the screen according to your needs.
  • USB Fast Charging Port: The variable power supply is configured with an 18W fast charging port. No more mplaining about mobile phones or repaired devices not being charged in time. The NANKADF dc power supply allows you to avoid this dilemma. It charges your devices quickly anytime, anywhere.
  • Compact and Lightweight: The measures of the variable dc power supply is only 7.51 x 3.56 x 5.81 inch and the weight is only 2.47 pounds, which saves more space on your workbench and is convenient for you to carry when you need it.



Product Description

BENCH POWER SUPPLY
VARIABLE POWER SUPPLY
POWER SUPPLY VARIABLE
dc power supply
bench power supply

lightweight and Compact

Dimensions: 5.81*7.51*3.56 INCH

Weight: 1.15kg

variable power supply

Input Voltage Range: AC 230V/115V

If your area uses 110V, flip the voltage switch on the back of the dc power supply to 115V (otherwise it may not reach the 30V output voltage).

bench power supply

R. Ross
2025-09-06 13:55:18
I need a second low-voltage supply at our ranch for use in bench testing electronics at typical electronics supply voltages levels, sort of 1.5 volts to 18 volts. In particular I wanted to use it to test a rain gauge with LCD display designed to work off of two AA batteries...sort of 3.5 volts down to 2 volts. I wanted to measure the discharge current drawn by the rain-gauge electronics as a function of voltage as the battery discharged, and describe the LCD display brightness and contrast as a function of voltage level. With my other low-voltage bench supply, dialing in a particular voltage in a real hit or miss operation. The course knob always overshoots, then I find that my desired reading is out of range of the fine knob...so I go back and forth several times to get the reading I'm after. The unit was a dream. You just set the knob to control the digit you want to control and it just steps precisely for each click of the knob. In my case I wanted to test in 0.1 volt increments starting at 3.5 volts and dialing slowly down to 2.0 volts. I just set the voltage at 3.5 volts and the knob for 0.1 volt increments. Each click dropped the voltage exactly 0.1000 volts. Infinitely better that my other power supply. The second thing I like about this supply is the second on-off switch on the output...separate from the power on-off for the unit. Another. 50-year-old very-low voltage supply I have has this feature and I use it all the time. With this feature one can set the voltage and current level while the test unit is plugged in and also turn the test voltages on and off without going thru the transients of turning on-off the power supply. Very helpful.I checked the voltages and current w.r.t. my digital multi meter and the agreement was good. However, don't expect it to accurately measure currents of just a few milliamps. For that I used my digital multimeter.Highly recommended!
Southerngent
2025-08-04 15:59:29
This is my first time using one of these, and it was easy to setup and use. It came with the cord and connection wires to connect the unit to your project item. It works as advertised. If suggest looking at a couple of YouTube videos for clarity in the use of these types of machines, as the instruction manual isn't very clear ( voltage vs current output). If highly recommend.
Kind Soul
2025-07-20 12:59:28
Bought two of these, one for the office and one to keep at home. They work fine, are accurate and easily adjusted. I like the extra button that cuts off the output without having to completely turn off the supply.
Alec Lanter
2025-06-08 16:05:13
Works as advertised. Digital control knobs are much easier to use than similar potentiometer-based models. Output current and voltage seem accurate.
Craig A Roop
2025-05-30 13:12:10
This unit is small, quiet and robust within it's design limits. A great value for the money!
Liberty's Friend
2025-04-01 10:19:31
The power supply supplies the desired voltage and amperage accurately. I have been using it to run a long term test on a vintage automotive clock and it has been supplying a clean, reliable 12 volts for months.
Derik Gagnon
2025-02-28 14:38:33
This worked great for very light use testing on circuit boards for Game Boys. It mostly just sat on my desk unused for a lot of time and never went above 6 volts.Now I went to go use it tonight, and the volt knob now only turns the voltage down regardless of direction. I tried on every single digit, but now I can't get above 0 volts. At this point, it's a glorified paper weight. Absolute trash components.
Joe Kiras
2025-02-24 19:09:10
Great for giving that dead battery a quick boost so a charger can begin charging again. A+
Mario Sanchez Galvan
2025-02-23 10:22:15
Que es fácil de usar y no se calienta
Jawaharbabu
2025-02-02 15:31:45
User friendly and nice,very good product.
Rafael R
2025-01-20 17:10:40
El producto no sirvió desde un inicio la devolución tarda demasiado tiempo, pensé que al ser un producto importado tendría que pasar por algún tipo de control de calidad el cual por lo visto fue nulo
Marco López
2024-12-25 21:49:30
En general todo muy bien, el único problema fueron los cables, que no servían y no me pudieron resolver ese problema
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