H7 HID Kits are single beam bulbs that are used for low beam, high beam and fog light applications. H7 bulbs are commonly found in German made vehicles such and BMW and Mercedes but can also be found in non German made vehicles also. If purchasing this kit for a German made vehicle be sure to include relays and cancellers with you purchase. They are required in order for the HID Kit to function properly with your car. It is also strongly recommended to purchase a Digital ballast along with your relay's and cancellers because German vehicles are very sensitive to non digital ballasts and bulbs. Already included in the purchase of your HID Kit is a pair of bulbs and ballasts. Also available for you to purchase is a Lifetime Warranty which will guarantee that your kit will be free of defects for as long as you own it. 

H7 HID Conversion Kit Installation Manuals:

H7 HID Conversion Kit

H7 HID Conversion Kit (with Relay)

H7 HID Conversion Kit (with Cancellers)

H7 HID Conversion Kit (with Relay+Canceller Combo)