BENQ TH681 Replacement Lamp with model 5J.JAH05.001 that stopped working - YouTube
Wski Hight Quality Original Bare Lamp P-vip 190/0.8 E20.9n For Benq Th681 Mh630 Mh680 Th680 Th681+ Th681 Mx662 Mx720 Projectors - Projector Bulbs - AliExpress
Amazon.com: Genuine OEM Replacement Lamp for BenQ MH630, MH680, TH680, TH681 Projector - IET Lamps with One Year Warranty (Power by Osram) : Electronics