2004 Audi A4 Quattro Headlight Low Beam(Avant, with HID headlamps) D1S HID 893m The 35W AC Ballast is

The 35W AC Ballast is superior to the DC model given that its Alternating Current to help preserve the longevity of your HID bulbs while still supplying it the 35W needed to be 3-5 times brighter than Halogens

You can also brighten up your license plate and your brake lights if you upgrade from halogen to LED

9003 LED Kit has everything you need to make the switch from Halogens or HID to the Newer and best lighting option of LED

The H13 Motorcycle HID Kit has everything you need to make the superior switch from Halogens To HID lighting with the best visibility for those dark nights

2004 Audi A4 Quattro Headlight Low Beam(Avant, with HID headlamps) D1S HID 893m The 35W AC Ballast isOur D1S Direct Factory Replacement bulbs is a very low energy consumption while being powered by 35W. 3,000K 4,300K 6,000K 8,000K 10,000K What's included One Pair of D1S Direct Factory Replacement Bulbs, Available in 5 different temperatures 6,000k being the brightest.