Compatible Models: for NEC PA521U PA522U PA522UG PA571W PA571W-13ZL PA572W PA621U PA621X PA621X-13ZL PA622U PA622X PA671W PA672W PA672W-13ZL PA721X PA722X PA722X-13ZL NP-PA521U NP-PA522U NP-PA571W NP-PA572W NP-PA621U NP-PA621X NP-PA622U NP-PA671W NP-PA671WJL NP-PA672W NP-PA721X NP-PA722X ViewLight NP-PA521UJL NP-PA571WJL NP-PA621UJL NP-PA621XJL NP-PA622UJL NP-PA721XJL ^^ LMP-H has been specialized in the production of projector lamps for 21 years, with mature Research and Development team and after-sales team ^^ All our lamps use the highest quality raw materials and the brightness is 15%-22% higher than other lamps (LMP-H lamps brightness close to the quality of original bulbs) ^^ All the projector lamps are lamp bulbs with the housings, and it is convenient to replace your old lamp, it will takes only 2-9 minutes for you to put the lamp into the projector as the same way as you take it out ^^ after sales service, giving you great peace of mind. If you have any questions about the order, please feel free to contact our dedicated support team at any time. We will be happy to answer them for you promptly