Get that high-tech 'Litronic' look at a fraction of the cost! Replace your quartz halogen bulbs with these Super White Bulbs and your lights will resemble the more expensive upgrade kits available for the late-model cars. Halogen and Xenon gas are combined in these bulbs to give them a very pure white, bright beam. Simply swap your quartz bulb with these ones for an instant upgrade! Note that running the H5 or H1 bulbs on high beams for more than an hour is not recommended (heat buildup)