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
Rectangular metal power supply unit with side voltage selector switch, front on/off toggle, banana plug sockets and cooling fan grille

BFKK

BFKK 110V-240V AC to 12V DC Switching Power Supply 50A 600W with Switch

SKU CH-RS3X-GRGEV

Converts 110 V–240 V AC to 12 V DC at up to 50 A with built-in on/off switch and protection circuits

  • Wide 110 V to 240 V input suits global mains voltage
  • Manual 110 V or 220 V selector matches local supply
  • Built-in on/off switch saves unplugging and extends unit life
  • Multiple protections guard against over-voltage, over-current and over-heat
  • 2 kg light weight with 4 mm banana sockets for quick connection

Power supply for 12 V projects

This BFKK switching unit converts AC mains from 110 V to 240 V into a regulated 12 V DC output. It is built for hobbyists and technicians who need a bench-top or portable source for LED strips, car stereos, CCTV cameras and similar 12 V equipment.

Input selection and load limits

A side-mounted voltage selector switch must be set to either 110 V/120 V or 220 V/230 V before use. The unit delivers up to 50 A peak and 600 W peak; resistive loads such as LED strips can run closer to that peak, while motor-driven devices draw higher start-up current and should be sized well below the maximum rating.

Replaces separate transformers and manual switching

The integrated on/off switch removes the need to unplug the unit between sessions, reducing wear on mains connectors. The 4 mm banana plug sockets and clamp-friendly cylindrical contacts let you connect test leads or bare wires without extra adapters, streamlining bench setups that previously relied on fixed-terminal supplies.

Highlights

  • Wide 110 V to 240 V input suits global mains voltage
  • Manual 110 V or 220 V selector matches local supply
  • Built-in on/off switch saves unplugging and extends unit life
  • Multiple protections guard against over-voltage, over-current and over-heat
  • 2 kg light weight with 4 mm banana sockets for quick connection

Specifications

No published specifications for this item yet.

Questions about this item

Should I pick the 10 A, 20 A, 30 A or 50 A version for my 12 V LED strips?

The unit delivers up to 50 A at 12 V; choose a model whose rated current meets or exceeds your load — 40 A strips run fine on the 50 A version.

What does the 600 W peak rating mean when I connect it to a real 12 V load?

600 W is the peak at 12 V and 50 A; continuous power varies with the device, so resistive loads like LEDs can run closer to the limit while motors need more headroom.

How does the 110 V / 220 V selector switch affect the 12 V output?

The side switch sets the AC input to 110‑120 V or 220‑240 V; the DC output stays at 12 V and the maximum 50 A / 600 W rating is unchanged.

Also in this aisle

People compared these

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