The Lutron Diva Satin DVSCELV-300P-CS is a single-pole electronic low-voltage (ELV) dimmer designed for 120V residential and commercial installations with transformer-driven low-voltage lighting loads. Rated for 300W ELV, it features a large paddle switch for on/off control with memory to favorite level and a captive linear-slide for brightness adjustment. Built-in soft-glow nightlight and standard single-pole wiring simplify installation in a designer wallplate opening. Cobblestone satin finish.