Rousseau Lamp with Magnifier and Fluorescent Light: This lamp features a dioptric grade of 3 for 1.75X magnification and includes a fluorescent tube. It is available in black and can be attached to a work surface or to WM10 uprights using a WM68-01 light-duty arm adaptor (available separately). The reach of the lamp on the upright can be extended with a WM69-12 light-duty arm, also sold separately.