From Amazon
MicroLamp ml12566 210 W Projector Lamp – PROJECTOR LAMPS (210 W, OPTOMA, W350, w316st, W351, x316st, X351)
Compadvance
COREPARTS Projector Lamp For Optoma
Athema Services
coreparts projector lamp for optoma 4000 hours, 210 watt ml12566 - eet