This is ONE ballast, ONE igniter, ONE braided cable, and ONE D1S bulb that will fit into most B6 2002-2004 A4 and some S4 headlight housings. I don't know what other Audi models these fit. I bought this thinking it was the thinner LAD5GL ballast that I actually need. PM me if interested. Located in SF Bay Area. Pics will be available soon. $75, add $6 to ship, no extra Paypal fees, local pickup OK.