TPI's Illuminated Fluorescent Magnifier 45MAGW features a 5", 8-diopter ( 3X power ) magnifying clear lens for 200% magnification of an object with a focal length of 5". A suspension spring balanced arm assembly allowing up to a 45" reach with finger tighten control knobs to lock the arms and shade into position. The housing is constructed of a sturdy white plastic 8-1 / 2" shade with an on / off rocker switch and glare protection cover located on the top of the shade. The 45MAGW includes 18/3 wire grounded 6' cordset and molded NEMA 15-5 plug as well as a factory installed 22W, 120V, T-9 deluxe cool white circline fluorescent lamp / protective lens. The die cast clamp on base attaches to any flat surface up to 2-1 / 2" thick.