5A, 120 Volt AC 60Hz, Single-Pole, Trimatron Full Range Electro-Mechanical, Rotary Fan Speed control - Ivory. Leviton Trimatron lighting controls are traditional rotary-style dimmers that are renowned for their compact, easy-to-install design and outstanding reliability. Trimatron dimmers are only half as deep as many conventional rotary-style dimmers, providing an easy fit even in shallow wallboxes. They are furnished with wire leads to further speed installation. Trimatron dimmers are available in single-pole (one location) and 3-way (multi-location) Deluxe Push-on/Push-Off versions for incandescent lighting and fan speed control. The Trimatron line also includes Rotary on/Off dimmers and Quiet Fan Speed controls.