I have been researching a company to possibly reproduce the GE type H-100/BL-4 high pressure mercury vapor UV "black light" source, a company called ushio would be willing to reproduce this lamp, but only with an order of 1000 lamps or more. Anyone who needs multiple black lights I can assure you it still fits modern purposes as well as historical puposes. It will run on a 100watt mercury vapor ballast, or metal Halide ballast. Also, any collector who might want a reproduction of this lamp would help as well. Please leave a reply if you would be interested in helping reach the goal of 1000.
Thank You,
Nicholas K. Heinrich
