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DC Power Supply Variable, 120V 3A Bench Supply With Encoder Coarse & Fine Adjustments Knob, Adjustable Switching Regulated Lab Supply With 5V 3.6A USB & Type-C Quick-Charge

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Availability: 20 left in stock
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Arrives Friday, Oct 16
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Style: 120V 3A


Features

  • Precise encoder knob: HANGELL DC power supply 0-120V 0-3A is different from the ordinary traditional knob, which is adjusted by precision encoder knob, with high precision and strong stability. With coarse adjustment and fine adjustment, the number of digits can be switched by pressing the knob, and the value can be set by rotating the knob. It is more convenient to adjust the required voltage and current.
  • Output switch button: The variable dc power supply is equipped with an output switch button, so you can easily turn on or off the output by pressing the output button. You can check the working status through the indicator light on the display screen. When the output is turned off, the voltage and current data can be adjusted anytime and anywhere, effectively preventing the load equipment from being damaged by forgetting to turn off the output.
  • Short circuit alarm: In order to improve the safety of lab power supply and prolong its service life, we designed a short circuit alarm device for DC power supply. After the OCP function is turned on, if the load equipment is short-circuited in the working process, the variable power supply will automatically stop outputting and send a buzzer to remind the user, protecting the adjustable power supply and the load from being damaged. Bench power supply also has safety protection functions such as overvoltage, overcurrent, overtemperature and overload.
  • High-precision 4-digit LED display screen: The laboratory DC benchtop power supply is a professional laboratory power supply regulating device with high resolution of 0.01V and 0.001A, providing more accurate voltage and current readings. Constant voltage (C.V)/constant current (C.C.) mode automatically switches with the change of load. You can see the working status indicator on the display. It is clearly visible even under the condition of insufficient light.
  • Packaging and after-sales service: The package includes: 1 x variable DC power supply, 1 x input power cord, 1 x output power cord, 1 x user manual. We provide lifelong technical support. If you have any question, please feel free to contact us.

Description

Hangell DC power supply is very comprehensive in terms of functionality. We have always prioritized the reliability of quality, using a metal body, safe and stable electronic components to ensure the stability and accuracy of the DC power supply, with lower ripple and noise. With multiple security protections at the same time, it will become a good helper for you in laboratory and industrial applications. In order to facilitate widespread use by customers in different regions, our DC adjustable power supply adopts a dual input voltage function, with an input voltage selection of 230V/115V. If you are in an area with an input voltage of 110V, you will need to flip the switch to 115V. Choosing the wrong option will affect the user experience of the DC power supply. DC power supply uses encoder knob, which is convenient for setting data. Both voltage and current have coarse and fine adjustment methods. The setting is faster, which saves complicated operation and is more convenient and accurate than the traditional knob. Output enable/disable switch: convenient for adjusting the output status of the power supply at any time. When the DC power is turned on, the default state is not output. When you press the "output" button, the indicator "OUT" in the screen turns green, indicating that the power output is turned on. When you do not need to output, pressing the "output" button again will turn off the output. The output button can prevent us from forgetting to turn off the output and causing load damage. OCP short circuit alarm: When the adjustable power supply or load experiences a short circuit, the power supply will automatically stop outputting and emit a buzzing alarm to remind the user. Effectively prevent damage to the variable DC power supply and load. Intelligent cooling fan: The cooling fan helps to reduce internal temperature. When the working temperature exceeds 122 ℉/50 ℃, the cooling fan will intelligently turn on, extending the service life of the equipment. Low noise: This bench power supply adopts safe and reliable electronic components and a new circuit design, which will make the noise and ripple of the power supply very low. 10A fuse box: The back of the benchtop power supply is equipped with a replaceable fuse, providing perfect overload protection and short circuit protection. Ensured the normal operation of the circuit. Our DC power supplies have the advantages of high quality, high performance, innovation and reliability in the market. We pay attention to the details and quality of our products and have gone through FCC, CE, ROHS, to ensure that each product is in line with customer expectations and needs. We have received high praise from professionals and a wide range of enthusiasts, and have a high level of trust in our products. We are committed to providing customers with high-quality service and support to ensure that customers get the best experience and results when using our products.

Model Name: HPS1203


Brand: HANGELL


Connector Type: Micro USB


Output Wattage: 360


Form Factor: benchtop


Wattage: 360 watts


Cooling Method: Air


Item dimensions L x W x H: 3.5 x 5.6 x 7.4 inches


Item Weight: 1.2 kg


Current Rating: 3 A


Connector Type Used on Cable: Micro USB


Output Wattage: 360


Form Factor: benchtop


Wattage: 360 watts


Cooling Method: Air


Current Rating: 3 A


Maximum Input Voltage: 120 volts_of_alternating_current


Minimum Input Voltage: 120 volts_of_alternating_current


Item Dimensions: 3.5 x 5.6 x 7.4 inches


Item Weight: 1.2 kg


Model Name: HPS1203


Brand: HANGELL


Number of Items: 1


Unit Count: 1 Count


Manufacturer: HANGELL


UPC: 716203948734


Model Number: HPS1203


Mfr Part Number: HPS1203


Warranty Description: 5 year


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Oct 16

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


  • Hobby grade tool... not a professional grade. A good buy for what it is.
Style: 120V 3A
This review is for the Hangell DC Power Supply Variable, 120V 3A Bench Supply With Encoder Coarse & Fine Adjustments. Seems like there are a lot of idiots buying this tool. Look...this is an inexpensive hobby grade bench power supply that is intended for use every now and then. What it isn't is a professional grade bench top power supply that is meant for running everyday for hours on end for testing equipment. If you are a professional that is looking for high quality equipment...leave now. And if you are a professional, what are you doing looking at hobby grade equipment in the first place? We have had this model for a little over a year now, and yes it has only been used a handful of times, but we've never had an issue. It protects itself very well. If you happen to touch a lead in the wrong spot and ground the tool out...it shuts off right way and sounds an alarm. From what I can tell, this is pretty darn accurate. Different meters will give different readings. These are also hobby grade meters, so consider the source. Noise? What noise. For the cost, I'd say it's a good buy. But, as always...your money and your choice. In closing, we also have a smaller 60v model from this outfit and that has been trouble free for over 6 years now. ... show more
Reviewed in the United States on May 31, 2026 by Amazon Buyer

  • Quit working…
Style: 120V 3A
Purchased the unit in December 25. Just lasted till September with use of handful of times and now has become inoperable.
Reviewed in the United States on September 13, 2026 by oliveR

  • Very Happy With It
Style: 120V 3A
I needed a high voltage power supply to charge solar batteries. This unit fit the bill and the price was right. The construction is very good as is the fit and finish. It is very intuitive and easy to use. I tested it several ways and it met all my needs well. Accuracy was average, but well within my needs. Under a high load the fan kicked in, but is was relatively quiet while running. Overall, I am very happy with this 120v power supply. ... show more
Reviewed in the United States on October 1, 2025 by Steve

  • Great power supply for the price
Style: 120V 3A
Bought for nickel plating process but I use it frequently for various projects. I've used it to power led strips and determined wattage simultaneously. Good power supply for the price.
Reviewed in the United States on August 14, 2026 by Adam Fink

  • Has regulation problems
Style: 120V 3A
Works great on constant current but doesn’t regulate very good on constant voltage. Not good for projects. Exchanged for a second one and it does the same thing. If you are doing any precision work stay away from this product.
Reviewed in the United States on March 11, 2025 by Joseph Huck

  • Works well
Style: 120V 3A
Initially thought my unit was bad because the color decals for ground and negative are backwards on my unit and the text is hidden from sight unless looking straight on at the power supply. After connecting my leads to the correct terminals the power supply works exactly as expected.
Reviewed in the United States on January 9, 2025 by Greg Goat

  • Buy a different brand
Style: 120V 3A
Why did you pick this product vs others?: Power supply only lasted 45 days before output became erratic. It creates tons of ripple and fans also failed.
Reviewed in the United States on June 18, 2025 by TMP

  • Great for recharhging batteries that were not dead
Style: 120V 3A
Work as advertised. Came with leads and wor good to recharge dead batteries
Reviewed in the United States on November 3, 2025 by Byeuall

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