The Lutron Diva DVELV-300PH-WH is a 300W electronic low-voltage (ELV) single-pole dimmer rated for 120V applications controlling transformer-based lighting loads, packaged in clamshell retail packaging for convenient point-of-sale distribution. The large paddle switch with a captive linear-slide control fits a standard designer wallplate opening and features a built-in soft-glow nightlight; neutral wire required. Compatible with the full Lutron Diva product family using standard single-pole wiring. White gloss finish.