... -xenon projector lens lights,two inverters, a relay with wire,a set of orientation ring(like adaptor which can match H4, ... stable function,proportion shadow,safer driving. (3)Work with digital control switch function and HID BI-xenon lampholder,when you install ... , ensure the headlight stability, Waterproof and safety. (7) With the function of delaying turning off the light and double beam projector ...