Short product description:
OPTOMA W309ST is a short-throw DLP projector with WXGA (1280x800) native resolution and 3800 ANSI lumens brightness. With a 0.52:1 throw ratio it projects large images from short distances (0.4–3.4 m) to screens 35.6–303". Features include 16:10 aspect, 10 W built-in speaker, 1 HDMI, 2 VGA, USB 2.0, RS‑232, lamp light source (203 W) with 6000 h life (10,000 h eco), and 28 dB noise in eco mode — suitable for classrooms and meeting rooms.