Dimmer Touch 3-Level 200W Space saving design allows for surrounding outlets to be used. Converts any lamp with metal to a 3-level touch dimmer. Touch any metal part of the lamp including the harp to select light level. Use regular incandescent bulbs instead of expensive 3-way bul bs. Incandescent only. 200 watts maximum. Plastic housing. Plug-In connection, plug lamp into dimmer and dimmer into outlet. 1.73" x 2.6" x 1.36".