eWorldlamp High Quality 5J.J7C05.001 Original Bulb/Lamp Compatible for BENQ MX815ST/MX815ST+/MX816ST Projector 100% compatible with the Original Bare Lamp Lamp Life: 2000 (normal) / 3000 (economy) hours Compatible for BENQ MX815ST/MX815ST+/MX816ST UHP200/150 Watt Full 180 Day Warranty. Express shipping