3M Advance 1865 Overhead Projector Comparison

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Articulating wide-angle closed singlet lens shows bright, big-screen images. Unique color-tuning dial eliminates blue or brown corners for bright images. New design looks good in any meeting-room or classroom environment. High-to-low device switches from 3,400 to 4,000 lumens for black-and-white and color transparencies. Dimmer switch conserves lamp life. Handy lamp changer makes switching lamps easy. Hush-quiet fan reduces noise level for more enjoyable presentations. Convenient carrying handle and fold-down post provide optimal portability and storability. Power-cord wrap eliminates tangled electrical cord. Thermal-protection circuit disconnects power to lamp in the unlikely event that the projector overheats. Practical lamp ejector makes replacing lamps a simple task. Lamp interrupt switch shuts off power to lamp, when changing lamps, to prevent premature lamp failure Cool-temperature stage prevents transparency film from curling. Made in the U.S.A.

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