1.Our product is in accordance with the standard of theSAE J1772,UL,NEC and related Standards. 2.The handle of the plug is designed for Ergonomics,pretty is appearance and easy to plug in and also feel good. 3.When the plug fall from 1 meter high,it will be all right 4.Plug button with LED light design,so enven if in the environment that not bright,it can illuminate the socket and can be goog operated 5.The locking bayonet device is to ensure secure and reliable of the charging connection,when hold down the button,you can quit easily 6.The terminal of the socket is designed with insulated against electric shock,that prevent user from contact with their tingers. 7.Dust,water proof level is higher than lp55 8.High-performance copper alloys and silvering terminals can effective reducing the hazards by Arc.