The light source is a 13-watt compact fluorescent. This energy-efficient, cool operating tube lasts up to 10,000 hours. Since the light source is located behind the magnifying lens, the light is cast at an angle of incidence ideal for highlighting object details. This shadow highlighting makes details of uneven surfaces "pop out" to the viewer and is well-suited for needlework.
The all-metal flexible arm is tough and durable. It adjusts easily and stays in position. Total reach for the unit is 30 inches.