Electromagnetic : GB17625.1 Intensity of lightning strength:5KV Intensity of ESD strength:4KV Protection grade:IP68 Prodcut Descripition1,The Switching Power Supply: Isolated and with high efficiency which is as up to 80%.2,The Wide Voltage Input: AC85-265V, The rated output power:7-40 W, constant current: 20-1500 mA, they could be chosen by users.3,Functions:short circuit protection, overload ...