New original remote control for OPTOMA EP1691.DS316L.DX623.ES526L.EP7155.EP1691I.EP7155I.EP7155E.TX7155.EX7155E.EW7155E|Projector Accessories| - AliExpress
Optoma EP1691 DLP Projector Specs
Optoma EP1691 DLP Projector - Newegg.com
Amazon.com: eWorld Replacement Bulb/Lamp Module with Housing Compatible for OPTOMA EP1691/EP7155/TX7155 Projector : Electronics