Kensun HID Xenon Conversion Kit with "Slim" Digital Ballasts - H7 - 10000k Simple installation - usually in 20 minutes or less (some cars may require professional installation) Ballasts are 100% Water-proof, 100% Dust-proof, 100% Shock-proof Included in kit: 2 slim digital ballasts, 2 bulbs, Installation instructions, Smart aluminum carry-case Standard kits have a 2-year warranty Produces 2 to 3 times as much light as a halogen bulb