NEC NP21LP Projector Lamp Replacement Northstar AV sells OEM (Original Equipment Manufacturer) Lamps - Philips, Osram/Sylvania & SHP brand lamps inside of OEM spec housings. We DO NOT sell generic or compatible replacement lamps. Projector Lamp Model: NP21LP Compatible Projectors Models: NEC NP-PA500U NEC NP-PA500X NEC NP-PA550W NEC NP-PA5520W NEC NP-PA600X NEC PA500U NEC PA500X NEC PA550W NEC PA5520W NEC PA600X Average Lamp Hours: 2000-3000 Hours Lamp Type: UHB Warranty: 180 Day Warranty (From Date of Install)