Description: Waterproof IP68 Voltage Converter Regulator DC 12V/24V (wide Voltage 10v-40v) to DC 5V 15A 75W. Protections: Over-load, Over-current, Over-temperature, Short-circuit, Over-voltage. High Conversion Efficiecy: Synchronization Rectification Technology-multiple intelligent protection function with high conversion efficiency and stability. The conversion efficiecy may reach 95%. Aluminum shell, anti-shock, and moisture-proof and durability. Usage: LED display, toy cars, motors, audio, navigation, Surveillance, air conditioning, electric fans, solar energy, etc Specification: Module Properties: DC step-down module (BUCK) Dimension:74x74X32mm (L x W x H) Cable Length:13-14cm Welding wire way, the wiring instructions : Input: red (+) black (-) Output: yellow (+) black (-) Package Includes: 1Piece DC/DC Buck Converter