Great little synchronous buck converter 20A DC-DC, 6V-40V to 1.2V-35V, can be used to convert 24V to 12V or 5V Synchronous rectifier with dedicated MOSFET; adjustable output voltage and output current; equipped with 75V/80A dual MOSFETs; high-frequency low-resistance electrolytic capacitor; includes over-current protection and short circuit protection Tighten terminal blocks securely using needle-nose pliers after loosening screws; consider adding hot glue to secure large inductors and capacitors to prevent excessive movement Ideal for emergency backup power applications such as charging flashlights, phones, radios; suitable for camping trailers, Raspberry Pi projects, landscape lighting, solar setups, RGB LEDs, Arduino Mega 2560, USB power supplies, child quad bikes, LiPo batteries, lithium-ion battery packs, and battery chargers Features: Adjust potentiometer clockwise to increase voltage, counterclockwise to decrease; conversion efficiency up to 95%; non-isolated module type; includes two heat sinks for enhanced 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 monitor settings may cause slight color variations between the image and actual product. Measurement tolerance: +/- 1-3 cm