The Lutron Skylark SF-10P-BL is an 8A fluorescent/LED dimmer designed for single-pole preset control of 3-wire ballast and driver loads at 120V, suitable for commercial and residential lighting control installations. The rocker switch recalls the preset slider level for repeatable dimming, and the slide mechanism delivers smooth, full-range adjustment across compatible fluorescent and LED systems. 100% factory tested. Black finish; coordinating Claro and Stainless Steel wallplates sold separately.