GLAMPS BL-FP180E / SP.8EF01GC01 Original Lamp with Housing for OPTOMA ES523ST EW533ST EX542 GT360 GT700 GT720 TX540 TX542 DW531ST EX540 BL-FP180E / SP.8EF01GC01 New Original Projector Lamp with original bulb and compatible Housing For OPTOMA ES523ST EW533ST EX542 GT360 GT700 GT720 TX540 TX542 DW531ST EX540