Conversion kit from standard halogen bulbs to H.I.D. bulbs, 12V 35W HB4 5000K (white light). Kit includes 2 HID bulbs with standard halogen socket, 2 Ballasts, 2 light canceller (resistence used to cancel check control alarms). Electronic equipments come with two year warranty, while bulbs with one year warranty. Depending by cars, expecially when can-bus systems are involved, the kit may require adaptation kits (see LCxxx references).