CTLAMP L1720A Professional Replacement Projector Lamp with Housing for HP mp3220 / mp3222 Type: Brand new compatible projector lamp with housing Part number: L1720A Compatible machine model: for HP mp3220 / mp3222 Up to 2000 (normal) 2500(economy) hours Life : 30 days Refund & 120 days ; Professional customer service support. Any other problems with the projector lamp, please contact us