I have a '50 with an old 5.5", sealed beam, Bates headlight installed. What sources are available these days for 6vsealed beam unitsand bulbs?

 

Vee Twin has Regular headlight along with H-4 assy and bulb which make a big difference and a real conversation stopper on mine, telling someome you have a 6 volt halogen headlight.

http://www.vtwinmfg.com/catalogs/cyr/pdf/1051.pdf