The Osram 54836 DYS bulb is a 600 watt, 120 volt halogen overhead projector replacement lamp.
The DYS uses a prefocus GZ9.5 base, a CC-6 filament and produces a lumen output of 17000 initial lumens. The bulb burn position is base down to horizontal with filament coil axis horizontal. The rated life is 75 hours.
DYS is a possible substitution for ANSI DYV and BHC.