House of Troy D436-52 Home/Office Collection 23-1/2-Inch Swing Arm Desk Lamp, Satin Nickel Adjustable, hinged neck allows for multiple lighting options Uses one 100 watt 3-way incandescent bulb Convenient 3-way switch on lamp socket UL listed in the USA and Canada; CA Title 20 Compliant with CFL bulb Coordinates with entire Home/Office Collection