Review on Replacement Xenon HID Ballast for BMW, Mini, Audi, Cadillac AL 307 329 153 & 307 329 193 Headlight Control Unit Module - 63117182520, 25806714 by Ricky Bedell

Bought and just installed. Works great and looks like the original. My complaint is that the seal is not attached to the device. Ballast failure is always due to either a short circuit or corrosion due to water leaks. If, due to water leaks, the seal is mostly to blame, the seal must be replaced at the same time as the ballast change (this is also the best course of action). The problem is that the print can't be bought anywhere else - not on Revain, not on eBay, not on car sites, not even at the dealer. The dealer only sells the seal with the control box. In my case I had to reuse the same damaged infill until I found a better solution as I couldn't get the infill anywhere. I strongly recommend that the manufacturer sells the seal with the ballast.