My original plan for taillights on my bucket was the standard '39 Ford cat's eyes. But I noticed a friend's car with these and they weren't very bright. I learned that one trick to improve brightness was to paint the inside of the light "bucket" white. But then I discovered LED's! A company called Technostalgia was selling LED taillights shaped like the '39 Ford units and their brightness is amazing. That's what I'm running with the addition of a 3rd "cats' eye" LED brake light from Speedway. What are you guys using for lighting?