Kimdrox Dc Buck 8-22v 12v to 5v/3a Power Converter Micro Usb Cable Connectors Adapter for Car Recorder DVR Connector: Micro USB;Total Length: 3 meters, build-in fuse;Module domensions:40x18x9mm Input voltage: DC 8-22V;Output voltage: DC 5V;Conversion efficiency: up to 96% Output current: 0.5A,1A,1.5A 2A, maximum 3A,adaptive;Static power consumption: about 15-18mA;Working temperature: industrial grade (-40 c to + 85 c) Protection:Short circuit protection, overcurrent protection, overheating protection, anti-reverse protection Rectified: Synchronous rectifier, high efficiency, low heat, stability and reliability