OVERHEAD PROJECTOR WITH OPEN SINGLE HEAD Wide-angle lens delivers large, clear image. * Open, singles lens; focal length 11.5". * 2,500 lumens for enlarged image; allows room light to remain on. * Transmissive design with folded optical system. * 10.5" x 10.5" stage aperture. * Safety lamp interlock. * 15' power cord with cord wrap. * Safety thermostat. * 5-year warranty. * 28"H x 14.2"W x 16.75"D.