The whole kits include:2 ballasts, 2 bulbs,a group cable, instruction book, repair-card, 2 steel plank, 2 groups of setscrew, 2 pcs of dual-adhesive tape. Features: 1) UV cut glass for headlight protection 2) Waterproof and vibration resistance 3) Color temperature: 4,300 - 12,000K 4) 12V / 24V, 35W available 5) Lifetime: >3,200hrs 6) Luminous flux: 3,200lm, nearly 3 times more than halogen lamps 7) Significantly lower electrical power consumption, and high light efficiency 8) Certificate: E-market(E-24) and ISO 9001:2000