CTLAMP BL-FP180D Compatible Projector Lamp with Housing for OPTOMA DS31 DS317 EX522 EX532 DS219 DX617 ES526B TX532 with Great Brightness and Long Life Part number: BL-FP180D Machine model: for OPTOMA DS31 DS317 EX522 EX532 DS219 DX617 ES526B TX532 120 days warranty and 90 days guaranty