DC Power Supply Variable, 30V 10A Bench Power Supply with Encoder Coarse & Fine Adjustments Knob, Adjustable Switching Regulated lab Power Supplies with 18W USB & Type-C Quick-Charge
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Availability:
20 left in stock
Arrives
Saturday, Apr 18
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Style: 30V 10A
Features
- Precise encoder knob: HANGELL DC power supply 0-30V 0-10A 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.
Brand: HANGELL
Compatible Devices: Electronic Devices, Laboratory Equipment
Connector Type: Barrel Connector
Output Wattage: 300
Form Factor: Benchtop
Wattage: 300 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: 10 Amps
Compatible Devices: Electronic Devices, Laboratory Equipment
Connector Type Used on Cable: Barrel Connector
Output Wattage: 300
Form Factor: Benchtop
Wattage: 300 watts
Cooling Method: Air
Current Rating: 10 Amps
Maximum Input Voltage: 220 Volts (AC)
Minimum Input Voltage: 100 Volts (AC)
System Bus Connector Type: Barrel Connector
Item Dimensions: 3.5 x 5.6 x 7.4 inches
Item Weight: 1.2 Kilograms
Brand: HANGELL
Manufacturer: HANGELL
UPC: 716203948710
Mfr Part Number: HPS3010
Model Number: HPS3010
Warranty Description: 5 year
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Apr 18
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.
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Top Amazon Reviews
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.
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Reviewed in the United States on October 1, 2025 by Steve Steve
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.
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Reviewed in the United States on April 12, 2025 by Evan C
Style: 30V 10A
My only complaint is that the USBC is not Power Delivery. You cannot trigger 20 volts. On a hobby power supply this should be a USBC-PD. I guess I should have read the specs better, but it works fine for my purposes. The leads are not silicone, but they are pretty flexible.
Reviewed in the United States on December 16, 2025 by Christopher 9
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.
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Reviewed in the United States on December 22, 2025 by electrical engineer
Style: 30V 10A
Love this power supply - well crafted and nice features. Especially appreciate the OUTPUT switch and that it is by default off when powering up - a true circuit saver!
Reviewed in the United States on August 23, 2025 by Mark Biasotti
Style: 30V 10A
Excellent product. No regrets in buying.
Reviewed in the United States on February 17, 2026 by wdudley
Style: 30V 10A
It work's.
Reviewed in the United States on February 13, 2026 by devongh