Professional, low heat magnifying lamp with high quality, extra-large 5" diameter lens features a fully adjustable internal spring-arm with a 45" reach. Convenient stay cool handle on head for positioning. 3-diopter glass lens provides 1.75x magnification. Removable protective lens cover makes this magnifier lamp usable as a table lamp. Uses one T9 22w daylight simulation bulb (included). Includes heavy-duty adjustable desktop mounting clamp that fits up to 2½" thick surfaces. All metal construction. UL listed.