HID lights come with ballasts. I am not sure where you would mount these so i'm not too sure how well they would work with this application. It would be interesting if someone has made it work though!
I put a set on mine. Was super easy. No battery needed. I had a set at my door for under $100.00, installed 1/2 hour later. Mounting the ballast was the trickiest part. I used the 3m double sided tape and duct tape. Then stuffed material behind them for filler. It sounds funny, but works great. I ordered them from HID Kits Xenon Lights Kit HIDs Conversion HID Headlights Bulbs