Lens material: glass
Lens size: 5 inches
Diopter: 3, 5 and 8
Voltage: 110 to 120 or 220 to 240V
Light source: T9 22W energy-saving circular fluorescent lamp
Standard mount: desktop clamp
Optional mount: table base and floor stand
Colors: white, black and light gray
UL, GS, CE and RoHS marks