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
Condition: New
Buy Now, Pay Later
As low as
$13.16
/ mo
Learn more
- – 6-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
30-day returns
Learn more
FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
20 left in stock
Arrives
Thursday, Aug 20
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.
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 Kilograms
Current Rating: 3 Amps
Connector Type Used on Cable: Micro USB
Output Wattage: 360
Form Factor: benchtop
Wattage: 360 watts
Cooling Method: Air
Current Rating: 3 Amps
Maximum Input Voltage: 120 Volts (AC)
Minimum Input Voltage: 120 Volts (AC)
Item Dimensions: 3.5 x 5.6 x 7.4 inches
Item Weight: 1.2 Kilograms
Model Name: HPS1203
Brand: HANGELL
Manufacturer: HANGELL
UPC: 716203948734
Mfr Part Number: HPS1203
Model Number: HPS1203
Warranty Description: 5 year
Unit Count: 1.0 Count
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Aug 20
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- Zip Pay in 4
- Financing through Apple Pay
- Financing through Google Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
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
Style: 30V 10A
I'm just a hobbyist so I'm sure that if I were trying to use this professionally I would have some different requirements, but for just powering random circuits it works great. The controls are kind of weird, but usable once you figure it out. It's difficult to see the labels on each knob because they're blocked by the knob itself. They should've honestly just had pushbuttons or something, the knobs make it more difficult to use. The "settings" are completely unintuitive and the manual is difficult to understand in places, but you can silence the beeping if you want. This setting seems to get saved even if you unplug it so that's good because I don't want to have to ever read the manual again. It comes with a set of leads with alligator clips but you might want to get a separate pair because they feel very cheap. The power cord it comes with is short but it's just a regular IEC cord you probably have a dozen of lying around. The USB plugs are always powered whether the output is on or not, in case you were wondering.
...
show more
Reviewed in the United States on April 12, 2025 by Evan C
Style: 30V 10A
Useful for testing the functionality of small electronics and diagnosing power-related issues. Allows for fine tuning of both amperage and voltage with over current protection for peace of mind. It's a modestly-sized unit and doesn't take up too much space. The power cord is detachable and uses one of the standard appliances NEMA cords. The leads are a little loose when plugged into the unit, but maybe that's by design. Added ground if desired. Leads feel to be of good quality and have ample length. Interface is easy to use. NOTE: The knobs are also buttons! For some bonus, includes fast charging USB capabilities built into the front which I guess is a nice tough though not necessary.
...
show more
Reviewed in the United States on December 2, 2024 Reviewed in the United States on December 2, 2024 by World's #1 Reviewer 🏆
Style: 30V 10A
This power supply is way better than it should be for its price point! Nice heavy duty case with plenty of ventilation, huge cooling fan, and good strong buttons with a nice easy to read face with very crisp digits on the display. I also like that it has an overcurrent protection and cutoff switch for the output. First class all the way!
...
show more
Reviewed in the United States on June 19, 2026 by Julianne
Style: 30V 10A
Works ok, regulation and ripple are what you’d expect for the price. It has some issue starting up when current limit set below 100mA. For example, set it to 5.00Vdc at 0.020A with a small load (LED and current limiting resistor) and it will go right into overcurrent mode when enabling output. Circuit should only be drawing 15mA or so. Same if no load at all. I thought it was defective until I turned current up to 100mA. Not a deal breaker for most cases; just something to be aware of.
...
show more
Reviewed in the United States on October 19, 2025 by mbrugman
Style: 30V 10A
Problem: Supply limited to a maximum of around 145 Watts output and not full RATED power (300 Watts) . Supply Voltage 115 VAC. All 4 supplies, had the same exact failure mode -- current becomes permanently limited to 7A maximum with a 10A set CURRENT LIMIT. When first tested, all could supply 10A at about 28 VDC to the same exact resistive load bank before they eventually failed. It is caused by a wire de-soldering itself from the voltage selector switch -- due to extreme heat (at least 360 F) caused by high contact resistance within the switch during higher power output and additionally case internal temperature. Without the switch being able to complete the circuit for 115 VAC input, it will assume 230 VAC input. This causes the problem. Initial measurements before failures: Input power 350 Watts, 4.2A, 512 VA @ 0.68 power factor into a DC resistive load. 4 failures in a row could indicate a underrated switch that can not handle the 4.2A continuous current at higher power output levels. There are no markings on it to indicate ampacity. While this switch will initially handle the supply's rated output current of 10A, it will eventually fail unless using lower power settings. The switch is a double pole double throw type and if one pole is damaged, the other spare pole could be used -- but probably will have the same problem later. Solution: Solder the two switch wires together (assuming 115 VAC supply) and heat shrink insulate the joint.
...
show more
Reviewed in the United States on December 22, 2025 by electrical engineer
Style: 30V 10A
Great product, works as expected. Good build quality, and the shipment was fast and effective.
Reviewed in the United States on February 2, 2026 by CJ Nel
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 Reviewed in the United States on October 1, 2025 by Steve