When using a 12V to 5V converter, the power of the device must be less than 25W and the current must be less than 5A. Reverse input connection will not damage the product, red wire is positive, black wire is negative. Specification Recommended input voltage:DC 12V/24V Input voltage range: DC 12V-32V Output voltage: DC 5V Output current: 5A Max Output power: 25W Max Conversion efficiency: 96% Operating temperature: -20℃~80℃ Waterproof rating: IP68 Size: 64 x 27x 14 mm/1.81 x 1.0 x 0.55 inch Protection Function Input reverse polarity protection Input overvoltage and undervoltage protection Input overcurrent protection Output overcurrent and short circuit protection, overheat protection