The Osram ETJ is a 250 watt, 120 volt MR16 dichroic reflector halogen projection lamp with a GY5.3 bipin base.
The bulb operating position is vertical (plus or minus 45°) base down. The ETJ has a rated life of 175 hours.
ETJ is used in medical and dental equipment, photo curing, fiberoptic and handpiece lights.
Cross reference brand part numbers: Ushio 1000379, GE 11322.