The Lutron C-1500-WH Centurion Rotary On/Off Dimmer offers a single-pole circuit with 1,5000w capacity built into a large, square face plate that measures 4.56 inches by 4.56 inches. The Lutron dimmer features a rotary-style knob with 120-volt (60-hertz) rating to power your single incandescent/halogen bulbs safely and easily. The Centurion C-1500-WH is well-equipped with features like voltage compensation, electrostatic discharge protection and radio frequency interference suppression for the best-quality lighting stability imaginable. It also offers a mechanical air gap switch and power failure memory for convenient, hassle-free programming. This top-quality dimmer comes in both beige and white matte finishes.