Round Magnifier Light Arm Design Articulating Arm Reach 30 in Clamping Capacity 3 in Color Gray Color Rendering Index 80 Color Temperature 4000K Diopter 3 Lens Diameter 5 in Lens Material Glass Lens Shape Round Lighting Technology LED Magnification 2.25x Maximum Brightness 700 lm Mount Type Clamp On Operating Voltage 120V AC Includes Ultraviolet Light No Arm Material Die-Cast Aluminum Dimmable Yes ESD Safe No Features Light Weight Focal Length 13 in