Cut rear housings to fit 9005/9006 L.E.D. bulbs. Low beams 8000 lumens and high beams 12,000 lumens. These projectors have the trap door to switch low beam to high beam in on projector. So I was thinking of having all four lights on all the time for low beams and then high beams would be trap door out of the way for all four projectors. Major improvement over factory lights. My opinion, best upgrade for the car.