The Lutron SLV-600P-IV is a Skylark single-pole preset dimmer rated at 600VA (450W) for magnetic low-voltage loads on 120V, suited for retrofit and new construction applications controlling MLV transformers in residential and commercial environments. The preset rocker switch returns lighting to the last-set slider level, while the slide-to-dim control provides smooth adjustment; 100% factory tested. Ivory finish. Coordinating Claro and Stainless Steel wallplates available separately.