We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Two small green circuit-board power modules with solder pins, 220V to 12V 20W

SMUGDESK

SMUGDESK HLK-20M12 220V to 12V 20W power adapter 2-pack

SKU CH-TBEQ-793EJ

Converts 220V AC to stable 12V DC at 20W with isolated protection, supplied as a twin pack for DIY electronics

  • Stable 12 V DC output from 220 V AC input for reliable DIY power
  • 20 W rated capacity supports small appliances, sensors and control boards
  • Isolated switching design with low ripple protects sensitive circuit boards
  • Built-in overload, short-circuit and over-temperature protection extends module service life
  • Two-module pack provides spare units for multiple smart-home or industrial projects

Two-module pack for DIY power projects

This pack contains two HLK-20M12 AC-DC step-down modules that convert 220V mains voltage into a regulated 12V DC supply. Each module delivers up to 20W of isolated power for smart-home controllers, sensor boards, LED drivers and similar low-power electronics. The compact integrated design fits inside tight enclosures without extra wiring.

Low heat and multi-layer protection

The switching topology keeps operating temperature low and output ripple minimal, so sensitive circuits receive clean power without large heatsinks. Built-in overload, short-circuit and over-temperature safeguards automatically interrupt output during fault conditions, protecting both the module and the connected load.

20W total output per module

The 20W rating per unit sets the hard limit for any single project; designs that draw more continuous power will need a higher-capacity supply. Buyers planning multi-channel LED arrays or motor-driven actuators should verify their peak load before committing to this module.

Highlights

  • Stable 12 V DC output from 220 V AC input for reliable DIY power
  • 20 W rated capacity supports small appliances, sensors and control boards
  • Isolated switching design with low ripple protects sensitive circuit boards
  • Built-in overload, short-circuit and over-temperature protection extends module service life
  • Two-module pack provides spare units for multiple smart-home or industrial projects

Specifications

No published specifications for this item yet.

Questions about this item

How do I wire the HLK-20M12 module into a 220 V mains supply, and which step is most often missed?

Connect the AC input pins to live and neutral, then take 12 V DC from the output pins; the step most often missed is adding a properly rated fuse and an earth connection to the metal enclosure before powering up.

What part of the HLK-20M12 will need replacement first after long-term use?

The internal electrolytic capacitors age with heat cycles; when output ripple rises or the module shuts down under load, the whole sealed unit must be swapped because it is not user-serviceable.

At what load does the HLK-20M12 hit its thermal limit during continuous operation?

Sustained loads near the 20 W rating raise the case temperature until the built-in over-temperature protection cuts output; derating or forced airflow is required for continuous full-power use.

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.