I use real incandescent Christmas lights, miniature lights from the 70's, C6's from the 50's and modern C7's and C9's. NO ugly LED's! I don't care what it cost. Real Christmas lights and Preheat Fluorescent!
If things go as planned, I am going to get three four bulb eight foot fixtures for my garage this weekend. $50 for the whole lot. That will be a lot of light