... manufacturers.With their own "DEEPROOT""YGY"BRAND.Waterproof adapter: 1 12W~36w Waterproof power supply2 Constant xoltage and constant current ... current 2 Short circuit protection3 Light weight4 Compact size5 Waterproof 6 17 years experience in power adapter Key ... box and plastic film protectionApplications:MP4 players, digital cameras,cell phone charger,network information,small home appliances,etc ...