Studio Designs 12308 Magnifying Lamp, 13-watt, Black 3 Diopter Glass Magnification Lens Flexible Arm Extends up to 36", Steel Spring and Tension Control Knobs Clamp Mounts Easily to Any Studio Designs Table 60 Watt Incandescent U.L. and C.U.L Approved 13 Watt CFL Bulb Included