The Epson EB-1840W is a professional WXGA (1280×800) projector utilizing 3LCD technology with 3,700 ANSI lumens color and white brightness. It delivers a 2,500:1 contrast ratio for clear image reproduction across various lighting conditions. Featuring a fixed manual zoom lens (1.00-1.60:1 throw ratio), it supports projection sizes from 30" to 300" with throw distances of 0.8-13.9m. Powered by a 275W ETORL lamp with 3,000 hours lifespan (4,000 in eco mode), it includes VGA and S-Video inputs with Composite output, USB connectivity for display functions, and RS-232C interface. With dimensions of 34.5×26.3×9.3 cm and weight of 3.5 kg, it operates at 39 dB noise level (35 dB in eco mode).