you may send the projector lamp back for a full refund or an exchange. 5.Compatible Models：Fit for Epson EMP-61 EMP-81 EMP-81+ EMP-821 Projectors ...

[Shawn] recently found a nice deal on an ‘as is’ Epson EMP-S4 on eBay and decided to take a chance. He assumed it probably worked with the exception of the missing lamp the seller mentioned.