Hi Ken,
Just wondering if you are the same Ken Arms who was working on a '34 Ford Sedan several years ago? I recall a lot of posts on the engine build I have not seen any posts from you for some time, until maybe just the last month, on the old 'Barn. If you are the same Ken, did you finish that '34?
I bought 6V halogen bulbs for my '35 headlights and taillights from "Classic and Vintage Bulbs". You can go to their website by clicking this
http://www.classicbulbs.com/ These bulbs fit right into the stock/original sockets. They claim these bulbs are 50% brighter than the original type bulbs. They definitely light up the roadway a lot better for me. I'm not as concerned now about driving my original '35 at night. High beams really put out the light! As GM states in his post, they will draw more current and probably cause move heating inside the lamps. I set the third brush in my generator to produce maximum current and all works well when I'm running at normal posted speeds. If I am sitting and idling too long, they will cause some drain on the battery. The tail lights seem to be a lot brighter as well. I only have one tail light (std model) and when that brake light comes on, it really lights up the back end of my car. My next mission is to add two extra bolt-on tail lights for an extra set of running, brake and direction signal lights. These extra lights will be easily removed if/when I want to show my car. These halogen bulbs were not cheap, but I sure feel much safer driving at night, and also the boss

(my wife) is a lot happier now with the better night time visibility. Anything that keeps her happy is worth paying for in my book. Last year these folks came to Hershey, PA (space C4R 13). So if you go to that show, maybe you can buy the bulbs there, or if not, you can order them on their website and pay a little more in S&H costs. Good luck! JM