One of the crucial features delivered by the Epson EB-1725 is its ability to provide up to 3000 Lumens via incredibly efficient ETORL (Epson Twin Optimised Reflection Lamp) technology. Designed to minimise light leakage a primary cause of lamp inefficiency and minimise light diffraction, ETORL lamps combine an ellipsoidal reflector, spherical lens and hemispherical mirror. This combination ensures optimum light efficiency with minimal power consumption and heat generation.