eWorldlamp High Quality BL-FU190A Original Bulb/Lamp Compatible for OPTOMA TW556-3D DS339 DX339 DW339 Projector 100% compatible with the Original Bare Lamp Lamp Life: 2000 (normal) / 3000 (economy) hours Compatible for OPTOMA TW556-3D/DS339/DX339/DW339 UHP200/150 Watt Full 180 Day Warranty. Express shipping