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Metal cased switching power supply with ventilation holes and voltage selector switch

BFKK

BFKK 12V 20A 250W AC 110V/220V Switching Power Supply

SKU CH-FSMP-5TSRG

Converts AC 110V/220V to stable 12V DC at 20A with adjustable output, multiple protections and a ventilated metal case for efficient cooling

  • Delivers steady 12 V DC at 20 A for demanding LED strips and CCTV
  • Selectable 110 V or 220 V AC input suits worldwide mains supplies
  • Built-in short-circuit, overload, over-voltage and over-temperature protection guards connected gear
  • 250 W continuous rating tested at full load for reliable long-term operation
  • Output voltage adjustable by 10 % to fine-tune LED brightness or camera voltage

12 V 20 A switching power supply

This unit converts 110 V or 220 V AC mains into a regulated 12 V DC output rated at 20 A and 250 W. It is built for installers and hobbyists who need a compact, metal-cased converter for LED strips, CCTV cameras, 3D printers or similar DC loads. A side-mounted selector sets the input range before connection.

250 W continuous capacity with adjustable trim

The supply delivers up to 250 W continuously and includes a 10 % output-voltage adjustment for fine-tuning strip brightness or compensating cable drop. Protection circuits cover short-circuit, overload, over-voltage and over-temperature events, while the built-in EMI filter keeps ripple and noise low. The perforated metal enclosure aids passive cooling under sustained load.

Replaces basic wall-wart or open-frame adapters

Users moving up from low-wattage plug-in transformers gain headroom for longer LED runs or multiple camera feeds without voltage sag. The step is worthwhile when a project exceeds 60 W or demands the reliability of 100 % burn-in testing and parallel redundancy capability. It is not suited for loads requiring higher than 12 V or currents above 20 A.

Highlights

  • Delivers steady 12 V DC at 20 A for demanding LED strips and CCTV
  • Selectable 110 V or 220 V AC input suits worldwide mains supplies
  • Built-in short-circuit, overload, over-voltage and over-temperature protection guards connected gear
  • 250 W continuous rating tested at full load for reliable long-term operation
  • Output voltage adjustable by 10 % to fine-tune LED brightness or camera voltage

Specifications

No published specifications for this item yet.

Questions about this item

Will this 12 V 20 A unit run safely alongside the 12 V 5 A supply I already use for shorter LED runs?

Yes — both deliver a steady 12 V output, so they can power separate strips on the same circuit without voltage mismatch.

How can I confirm the 250 W supply is operating correctly once installed?

Measure the output with a multimeter; it should read close to 12 V with no visible fluctuation at power-on, during load changes, or at power-off.

Does the box include a mains lead or only the bare metal-cased supply with its built-in voltage selector switch?

The unit ships as the enclosed switching supply with the 110 V / 220 V selector; a mains cord and any DC connectors for your strips or cameras are not included.

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