[Parameter]: Excellent small synchronous buck converter 20A DC-DC, 6V-40V to 1.2V-35V, can be used to convert 24V to 12V 5V [Function]: Synchronous rectifier dedicated MOSFET; output voltage adjustable, output current adjustable, 75V / 80A current MOS tube, high-frequency low resistance electrolytic capacitor; overcurrent protection; short circuit protection [Note]: You may need to hold the terminal blocks firmly with needle-nose pliers when first loosening the screws; you can add some hot melt adhesive to prevent the inductors and capacitors from moving too much [Used for]: Emergency battery for charging flashlights, phones, radios, and camping trailers; for projects, landscape lighting, solar system, RGB led, for 2560, USB, kids quad, batteries; Lithium-ion battery pack, battery charger [Highlights]: Adjust potentiometer: Clockwise-increase and counterclockwise-decrease; Conversion efficiency: 95%; Module type: Non-isolated; 2 heat sinks improve heat dissipation; low ripple; stable output Color: Photo Color Material: plastic Package Contents: 2 x 300W 20A Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowable measurement error is +/- 1-3 cm.