When the lights are off the Soft Glow locator light helps you find the dimmer at night. Use with up to 150 watts of dimmable LEDs or up to 600 watts of incandescent/halogen. Low end adjustment dimming range lever to improve dimming performance. Works with existing wiring - no neutral wire needed .Designed for single pole or 3-Way applications, where lights can be turned off/on or dimmed from at least two locations. Push to on/off, rotate to select light level.