Turn off the power supply of your car

Unalde the outlets,rubber waterproof lids and original headlights on the edges

Checking the wire assembly in the casw.Be sure that the anode is red and the cathode is black or based on the actual case

Check the lamp and be sure that it won’t be touched by the bulb,and the entrance of bulb is big enough.If not,adapt its size preparedly by tools

Put the bulb into the lamp,then adjust the spring of the base of the bulb.After it is fixed,install the rubber waterproof lid onto original position.The connect the bulb and the wire,and make each joint reliable

Connect the joint of halogen bulb and the power assembly,and connect the power assembly to batteries.Before installing is completed,don’t turn on the power

Make the ballast fixed,and make the power assembly fixed with loincloth

Adjust the lighting direction to a right angle.Don’t make it horizontal radiating the coming cars