1、As what mentioned in the installation procedures 3 that it should be very carefully when install HID lamp. Sometimes need to remove the headlight lanterns from the car first, and then reinstall it back after install the lamp inside lanterns. Please carefully to avoid scratch or damage the lamp.
     2、Fix the ballast on the proper place with a double-side stick tape or screws and fixation board.
     3、Do not turn on the power of the vehicle lamp during installation, so as to prevent personal injury by electrics shock from high voltage outputted by ballast.
     4、Check and adjust the illumination angle of the lamp after installation to avoid glares.
     5、If the lamp do not burn but with discharge glow, please check if the electrode of the lamp is too close to other objects and adjust it.
     6、Make sure the positive and negative connection is correct; all wires must be fixed without being pressed, folded, suspended or swaying.
     7、Before turning on the lighting system, make sure that the power of the vehicle battery is in normal scope, otherwise the lamp may flash, poor illuminating effect, headlight stop to work, even shorten the lifetime of HID system.