The ANSI FHS is a 300 watt, 82 volt halogen quartz glass bulb with a dichroic MR13 reflector.
The bulb has a CC8 filament, a vertical (within 45°) base down operating position and a 70 hour rated life.
The principal use of FHS is in filmstrip and slide projectors.
Cross reference brand part numbers: GE 47614, Ushio 1000535, Sylvania 54979.
Possible substitutes: EXR (more light, less life, more heat), EXW (more light, less life, more heat).