This is a wholesale package for 10 HID Conversion Kits. Included in your package is 10 Sets of Premium Xenon Lights and 10 Sets of Slim Ballasts. You can mix and match the application and color of your kits. You can also choose to upgrade your ballasts to either AC, CANBUS or 55 Watt ballasts. Also available to you is Bi-xenon upgrades and relay and canceller upgrades.