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Compact silver metal power supply unit with terminal screws and ventilation slots

myVolts

myVolts Regulated Switching Power Supply 12V 20A

SKU CH-QA3S-ESM5K

Converts 110–265 V AC to 12 V DC at 20 A with overload, over-voltage and short-circuit protection

  • TypeAT
  • Converts AC 110-265 V to stable DC 12 V 20 A
  • Built-in overload, over-voltage and short-circuit protection
  • Free-convection cooling runs silently without fans
  • Compact 645 g unit is easy to transport and install
  • Certified to CCC, FCC and CE safety standards

12V 20A Switching Power Supply

This regulated switching power supply converts AC mains input into a stable DC 12V output rated at 20A. It accepts a wide input range from 110V to 265V at 50 or 60Hz, making it suitable for global use. The unit includes overload, over-voltage, and short-circuit protection and is cooled by free convection. It is designed for professional LED lighting, CCTV security cameras, and similar low-voltage DC applications.

Replaces basic transformers or unregulated adapters

The supply replaces simple wall-wart transformers or unregulated adapters that cannot maintain a steady 12V under load. The jump is worth it when you need regulated voltage and current output to prevent LED flicker and extend the lifespan of connected strips or cameras. Built-in protections guard against overload and short-circuit events that would damage cheaper units. The wide AC input range also eliminates the need for separate voltage selectors.

Verify your load and wiring before ordering

Confirm that your total LED strip or camera draw does not exceed 20A at 12V. Check that your installation can accommodate the screw-terminal connections labelled L, N, GND, V, and +V/ADJ. Ensure the operating environment stays within 0 to 40 degrees Celsius and below 95 percent non-condensing humidity. The unit weighs approximately 645g and carries CCC, FCC, and CE safety compliance.

Highlights

  • Converts AC 110-265 V to stable DC 12 V 20 A
  • Built-in overload, over-voltage and short-circuit protection
  • Free-convection cooling runs silently without fans
  • Compact 645 g unit is easy to transport and install
  • Certified to CCC, FCC and CE safety standards

Specifications

TypeAT

Questions about this item

What input voltage range and connector labels does the 12 V 20 A supply accept?

The unit accepts AC 110–265 V at 50/60 Hz on terminals marked L, N and GND.

Which terminal is the voltage adjuster and how should the output leads be secured?

The +V/ADJ terminal sets output voltage; connect the load to V+ and GND, then tighten all screw terminals before powering on.

What operating temperature and humidity limits apply to the convection-cooled 645 g unit?

It runs at 0–40 °C with 0–95 % non-condensing humidity; store between -20 °C and 60 °C.

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