At 05:46 AM 5/13/98 -0500, you wrote: > I used to hear about something called the halogen cycle when I >worked as a technician with audio visual equipment. The idea was that >a halogen lamp filament gives off vapor when run at reduced brightness >and that the vapor redeposits back on to the filament when it was run >at full brightness. I don't know if this is for real or one of those All light bulbs do this to some degree. The difference is that halogen bulbs CYCLE the deposits back onto the filament. Andy ================================================================== Andy Kunz - Montana Design Go fast, turn right, and keep the wet side down! ==================================================================