Brand new BL-FP180E original bulb with generic housing for OPTOMA ES523ST / EX540 / EX542 / TX540 / TX542 / DW531ST / EW533ST / EX523ST / GT360 / GT700 / GT720 / PRO180ST / PRO450W / EX541i / EX542i Bulb With The Housing AuraBeam Economy Series Television Replacement Bulb. This is an Aurabeam Economy Series lampl For a Brighter & Sharper Picture look for the Aurabeam Professional Series replacement lamp. 180 Day Warranty Included. Exclusive Bulbs is the only authorized reseller of AuraBeam Lamps