Benq TH685i projector lamp
The Benq TH685i takes lamp 5J.JKX05.001 . It comes as a complete module, with the bulb already fitted in its housing.
The code printed on your old lamp or its housing should match one of the codes listed above. Benq and third-party suppliers sell the same lamp under several numbers.
The model number is on a label on the base or rear of the projector, and in the on-screen menu under Information. Still unsure? Send a photo of the old lamp and we'll confirm the match.
Which lamp does the Benq TH685i take?
The Benq TH685i uses 5J.JKX05.001, also sold as 5J.JL805.001.
Should I buy the bare bulb or the module?
This model's lamp is sold as a complete module: the bulb comes fitted in its housing, so you replace the whole unit in one piece.
How long does the TH685i lamp last?
Rated life depends on the lamp mode you run and how the projector is ventilated; the lamp's own page lists the figure where the manufacturer publishes one.
Does the same lamp fit other Benq projectors?
Yes. The same lamp also fits the Benq MU613, the Benq TH585, the Benq TH685.

