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Rectangular metal power supply with dual LED display, cooling fan and voltage adjustment knobs

KEHIPI

KEHIPI 20050 0-12V 0-40A 480W Power Adapter

SKU CH-9TJ8-22TTR

Adjustable 0-12V DC output up to 40A with dual display, fan cooling and overload protection

  • ColorDual Display Current Adjustable
  • Adjustable 0–12V output matches 2V–12V devices
  • 1V precision voltage control via inset potentiometer
  • 480W capacity with 40A maximum current limit
  • Dual 110V/220V input selector for worldwide use
  • Built-in overload, over-voltage and short-circuit protection

Adjustable 0-12V 40A Power Supply

The KEHIPI 20050 converts AC 110V or 220V input into a regulated DC output ranging from 0 to 12 volts at up to 40 amps, delivering a maximum of 480 watts. It suits technicians and hobbyists who need a single bench unit to power 2V, 3V, 5V, 6V, 9V or 12V devices such as LED strips, CCTV cameras or lab prototypes. Voltage precision is 0.1V and the output current is adjustable via an inset potentiometer. The unit defaults to 220V input and must be switched to match local mains before use.

Built-In Display Cooling And Protection

A dual LED screen shows real-time output voltage and current so settings can be verified at a glance. An integrated heatsink and temperature-controlled fan keep thermals in a safe range; the fan spins up automatically only when power draw is high and runs with little noise. Protection circuits cover overload, over-voltage and short-circuit events to shield connected equipment. Wiring is tool-free: connect the leads, select the input voltage, then rotate the potentiometer to set the desired output.

Replaces Fixed-Voltage Bricks And Basic Bench Units

This supply replaces a collection of fixed 5V, 9V or 12V wall adapters and entry-level bench supplies that lack current limiting or a live readout. The jump is worth it when a project demands variable voltage up to 12V with precise 0.1V steps and continuous current up to 40A, or when overload and short-circuit protection are required for prototype safety. It is not for buyers who need outputs above 12V, currents beyond 40A, or a programmable interface with remote sensing.

Highlights

  • Adjustable 0–12V output matches 2V–12V devices
  • 1V precision voltage control via inset potentiometer
  • 480W capacity with 40A maximum current limit
  • Dual 110V/220V input selector for worldwide use
  • Built-in overload, over-voltage and short-circuit protection

Specifications

BrandDROK
Model20050
ColorDual Display Current Adjustable

Questions about this item

What input voltages does the 20050 buck converter accept and how do you select them?

The unit accepts AC 110V or 220V input. A selector switch on the housing must be set to match your local mains voltage before powering on.

What physical features does the 20050 include for cooling and monitoring?

It has a built-in heat sink, an automatic cooling fan that activates at high power, and an LED screen that shows output voltage and current.

How do you adjust the output voltage and current on the 20050 and what limits apply?

Rotate the inset potentiometers after wiring; voltage adjusts in 0.1V steps from 0-12V and current must never exceed 40A regardless of voltage setting.

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