This new replacement front projector lamp ELPLP57-ER from eReplacements is 100% compatible with your elplp57er compatible epson and has an estimated lamp lifetime of approximately 2,000 hours. This lamp is user replaceable. Refer to your projector's manual for replacement instructions for this lamp. eReplacements front projector lamps all come with a 90 day warranty and will meet or exceed the original elplp57er compatible epson lamp specifications because they are manufactured for high performance using top quality replacement bulbs and the most up to date safety and engineering control standards.