Those HID bulbs are ONLY for replacement of your stock D3S bulb, not for Halogen bulb EVEN IF it shows "Fit"
Up to 3200 Lumens - More Brighter than Original Standard HID Bulb.
Plug and Play: 1:1 size specification, without any circuit modification, simple installation steps
Please make sure you ordered correct bulb, example D1S and D3S they are same looking, but D1S is 85V, and D3S is 42V, if put wrong bulbs they will flicker and turn off automatic.
This is OEM Factory HID Bulbs Replacement, Not Include HID Ballast, Not HID Kit. Warranty 12months