House Of Troy P10-190-M Counter Balance 20-Inch Portable Fluorescent Short Arm Lamp, Polished Brass and Black Marble Adjustable, hinged neck allows for multiple lighting options Uses one 13 watt-PL fluorescent bulb Convenient on/off switch on lamp base UL listed in the USA and Canada; CA Title 20 Compliant Energy saving 13 watt fluorescent bulb equivalent to a 55 watt incandescent bulb