DROK 12V Power Supply – Adjustable 0-12V, 0-40A Buck Converter, 110/220V Input, LED Display

Powerful, precise voltage control for your projects

The DROK 12V Power Supply is a compact, regulated DC buck converter designed to power a range of devices from small lab rigs to CCTV setups. It accepts 110 or 220 V input and delivers a stable DC output from 0 to 12 V with a tight 0.1 V step, giving you dependable control over your electronics without post hookup guesswork.

Key capabilities at a glance

• Wide adjustable range: DC 0-12 V to suit 2, 3, 5, 9 and 12 V devices with steady regulation
• High current headroom: up to 40 A maximum output, with current limited by the built in potentiometer for safe operation
• Clear monitoring: LED readout displays output voltage and current in real time for quick checks
• Smart cooling: heat sink and cooling fan maintain safe temperatures during heavy use
• Protection features: overload, over voltage, and short circuit safeguards help protect your gear

Ease of use in everyday setups

Designed for plug and play use, this unit requires no complex installation. Connect input power and wire your load, then rotate the recessed potentiometer to dial in the desired voltage. The built in display keeps you informed at a glance.

Real world uses you might consider

• Lab benches powering microcontrollers, LED drivers, or sensor rigs with stable supply needs
• Test rigs that benefit from precise voltage steps for repeatable experiments
• CCTV cameras and monitoring hardware that require reliable, adjustable power
• Portable projects that move between workstations or vehicles and need flexible power options

Important notes and warranty

Default input is 220 V; switch to 110 V when needed based on local mains. The maximum current remains capped at 40 A across all voltages. This product includes a one year warranty for peace of mind.