- This is a new illuminated desk magnifier lamp- Great for hobbyists, stamp collectors, jewelers, watch repairers, and etc.- Has a protective cover for the lens- Includes circular Fluorescent Bulb- Electrical specifications: 22 Watt AC, 120 Volt, 60 Hz- The opening of clamp is approx. 25/8" (67mm).- The extension arm can bend and rotate. The length of extension arm is approx. 40" (101.6cm)- The dia. of viewing lens is approx. 5" (127mm).- CE, GS, EMC, UL and CUL certified.- 120V 60Hz or 240V 50Hz