Features: 1.This product can convert 8-40V DC voltage to 5V 5A output. 2. The internal circuit board adopts precise SMT workmanship, waterproof, dustproof, shockproof. 3.Conversion efficiency is t0 96%. 4.Stable performance, long service life. 5. Suitable for car LED screens, monitor cameras, fans, water pumps, motors, routers and other 5V electrical equipment. Specifications: Model: GYVRM-K240505 Type: DC-DC Uninsulated Buck Module Input Voltage: 12V/24V(8-40V) Output Voltage: 5±0.25V Output Current: 5A Maximum Output Power: 25 Watts Conversion Efficiency: 96% Size: 60*24.5*20mm / 2.36*0.96*0.79in Installation Hole: 4mm/0.16" .16in Hole Distance: 51mm/2.01in Weight: Approx. 41g/1.4oz Package List: 1 * Buck Converter Note: 1. Due to the different monitor and light effect, the picture may not reflect the actual color of the item. 2.Please allow a little error due to manual measurement. Thank you for your understanding.