TGP 3ft (Feet) HID Ballast to Bulb Extension Wire Harness (For HID Conversion Kit) Contents: TGP 3 Feet HID Ballast to Bulb Extension Wire Harness Fitment: Replacement Wire to extend between the bulb to the ballast. Important: This Listing is only for a One Extension Wire Harness. Please purchase another and change the Quantity if you need more than one.