The Lutron Skylark SELV-303P-WH is a 300W electronic low-voltage dimmer designed for 3-way preset control of ELV lighting loads at 120V in commercial and residential applications. The rocker switch returns illumination to the preset slider position, while the slide mechanism allows full-range dimming from a single location or paired 3-way configuration. Neutral wire required; 100% factory tested. White finish; coordinating Claro and Stainless Steel wallplates sold separately.