BenQ MW767 4200 Lumen WXGA SmartEco 3D DLP Projector SN: PDS3D01135001 NEW LAMP! | eBay
BenQ MS517 2800 Lumen SVGA DLP Smarteco Projector
Original Replacement Fit For-benq Mx661, Mx504, Mx505, Ms521, Mx522, Mw523 Smarteco Ms619st,mx620st Projectors Remote Control - Remote Control - AliExpress
SmartEco" or "Extreme Eco" projector lamp power saving modes are a trap – The Open Sourcerer