1、This product can convert 8-40V DC voltage to the output of 5V 5A. 2、The internal circuit board adopts precision SMT workmanship, waterproof, dustproof and anti-shock. 3、The module shell is made of flame-retardant silicone, little heat production during use. 4、Built-in multiple protection including overvoltage, overcurrent, overheat and short circuit protection. 5、Suitable for car LED screen, monitor camera, fan, water pump, motor, router and other 5V electrical devices. Features: 2. The internal circuit board adopts precision SMT workmanship, waterproof, dustproof and anti-shock. 3. The module shell is made of flame-retardant silicone, little heat production during use. 4. Built-in multiple protection including overvoltage, overcurrent, overheat and short circuit protection. 5. Suitable for car LED screen, monitor camera, fan, water pump, motor, router and other 5V electrical devices. Specification: Model: GYVRM-K240505 Type: DC-DC Non-isolated Step Down Module Output current: 5A Max output power: 25W Conversion efficiency: 96% Size: 63*32*18mm / 2.42*1.26*0.71in Mounting hole: 4mm/0.16in Hole distance: 56mm/2.20in Weight: Approx. 46g/1.6oz Package list: 1 * Buck Converter Note: 1. Due to the difference between monitors and light effects, the pictures may not reflect the actual color of the item. 2. Please allow slight error due to manual measurement. Thanks for your understanding.