IllumaTech™ preset dimmers and fan speed controls feature a low profile fluid slide bar movement for fine adjustment of light levels or fan speeds that's accompanied by an easy to use ON/OFF preset switch. The switch provides quick ON/OFF control without disturbing your favorite pre-selected settings. Most feature a built in LED locator light, as well. Models are available for incandescent, magnetic or electronic low voltage and mark 10 Powerline dimming ballast fluorescent lighting and quiet and standard fan speed control. All preset models are designed for both 1-pole (one location) and 3-way (multi-location) applications.