... polarity protection. 6. As three times shining as normal halogen bulb.7. Lifespan more than 3000 hours.8. Operating temperature ... 1Other necessary install accessories Available Bulbs Types:H1, H3, H4, H7, H8, H9, H10, H11, H13, 880, ... 881, 9003(H4), 9004, 9005(HB3), 9006(HB4), 9007, 9008(H13) ... 3000K, 4200K, 6000K, 8000K, 10000K, 12000K ...Note:12V, 35W/55W kits available