Apollo 3000 Lumen Open Head Overhead Projector with Marker, 15 x 14 x 27 Inches (V3000M) Reliable, easy-to-use tabletop projector with 3000 lumen light output Ideal for medium-size conference and meeting rooms with 50100 people Open head with double fresnel lens assures edge-to-edge sharpness and brightness 11.25 x 11.25 Inch stage glass allows transparencies to be used from edge to edge Lightweight and easy to carry.Type:Transmissive