Westek 6004 200W 3-Level Touch Lamp Plug-In Dimmer, White Quantity of 4: Amertec-Westek 120V, Plug In Touch Dimmer Converts Any Metal Lamp To 3 Way Touch Dimming Simply Touch Any Metal Part Of Lamp For 3 Levels Of Brightness Use With Incandescent & Halogen Bulbs Only, 200W Maximum Eliminates Need For Expensive 3 Way Bulbs