This is an inexpensive alternative to E39 Xenon Headlights! This is a 2 piece kit to convert you halogen H7 to an aftermarket HID kit (Not included) for your 1997-2003 E39.
This type of H7 conversion adapter will allow you to place any aftermarket H7 HID/bulb firmly, quickly on For BMW E39 5 Series' original headlamp housing without destroying the original socket!
If you are unsure whether this product is compatible with your for BMW E39 5 Series, just pop up the hood and compare this product with the stock headlamp socket.
Note: this product is for BMW E39 5 Series 1997-2003 that has only halogen headlamps