Great little synchronous buck converter 20A DC-DC, 6V-40V to 1.2V-35V, suitable for converting 24V to 12V or 5V. Features synchronous rectifier with dedicated MOSFET; adjustable output voltage and output current; equipped with 75V / 80A dual MOSFET for high current handling, high-frequency low-resistance electrolytic capacitor; includes over-current protection and short circuit protection. For initial installation, securely hold terminal blocks with needle-nose pliers after loosening screws; consider applying hot glue to secure large inductors and capacitors to prevent excessive movement. Ideal for emergency backup power applications such as charging flashlights, phones, radios, and use with camping trailers. Suitable for Raspberry Pi projects, landscape lighting, solar setups, RGB LED strips, Arduino Mega 2560, USB power supplies, child quad bikes, LiPO batteries, lithium-ion battery packs, and battery chargers. Key features: Adjustable potentiometer (clockwise to increase, counterclockwise to decrease); up to 95% conversion efficiency; non-isolated module type; includes two heat sinks for improved heat dissipation; low ripple; stable output. Color: As shown in photo Material: Plastic Package Contents: 1 x Step Down 300W 20A Module Note: Other items not included. Lighting conditions and display settings may cause slight color variations between the image and actual product. Measurement tolerance: +/- 1-3 cm.