Features a 6" x 7" rectangular, 3-diopter crystal clear lens for distortion-free viewing with both eyes to reduce fatigue and strain. Twin side-mounted fluorescent tubes are 9 watts each and can be switched on and off independently to control or eliminate glare and shadows. Plastic housing is mounted to an internal spring-balanced maintenance-free arm with 35° reach that will set in any position. Unit operates at 115 V and comes complete with mounting clamp and 5-foot cord. 5 year warranty (except bulbs).