Articulating lens for especially crisp screen images. Chemically-hardened stage glass results in less maintenance, interruptions, and repair expenses. Closed doublet projection head prevents tampering while keeping out dust and dirt. 3000 lumens provides the utmost brightness every time. Dual element Fresnel lens ensures sharp images that make a lasting impression. Lamp interrupt switch shuts off power to a lamp when changing lamps to prevent premature lamp failure. Global Product Type: Overhead Projectors; Stage Size (W x H): 10 1/2 x 10 1/2; Brightness: 2700 lm; Portable: Yes. Computer Projectors
Additional Information

Make a lasting impression with the elegantly styled 3M Overhead Projector Model 1880. It comes with an articulating closed doublet lens for especially crisp screen images. The closed head prevents tampering with the precision two-element lens. There’s a color-tuning dial for edge-to-edge brightness, and high-to-low intensity switch that adjusts from 2,500 lumens to 3,000. One of the best on the market, a hush-quiet fan reduces bothersome noise for quieter presentations. The 3M Overhead Projector Model 1880 comes with carrying handle and fold-down post for easy storing and moving, convenient digital clock for on-time meetings, lamp changer that makes changing lamps simple, and power-cord wrap.