The Lutron Nova T NTLV-600-277-WH is a single-pole magnetic low-voltage dimmer rated at 600VA (450W) for 277V circuits, suited for commercial and residential lighting control applications. The slide-action control dims down to off and features an enclosed heat sink for a clean, finished appearance. Compatible with magnetic low-voltage transformer loads, it supports multi-gang alignment for streamlined multi-device installations. White finish.