CTLAMP BL-FP180C Compatible Projector Lamp with Housing for OPTOMA TX735 ES520 ES530 EX530 TS725 DS611 DX612 Part number:BL-FP180C Machine model: for OPTOMA TX735 ES520 ES530 EX530 TS725 DS611 DX612 120 days warranty and 90 days guaranty