LED dimmers with a neutral wire connect to the neutral conductor in the wallbox, which can support improved LED dimming performance and help reduce flicker. Dimmers without a neutral wire can simplify retrofits in boxes where no neutral conductor is present, while still supporting local control of compatible LED lighting.

Choose a phase-selectable LED dimmer when you know the lighting load and need to set forward-, reverse-, or another supported phase-control mode during installation. Choose a phase-adaptive LED dimmer when the load type may vary, since it can sense the load and adjust its phase control to support a broader range of bulbs or fixtures.

Many LED dimmers support single-pole and multi-location installations, with some models designed to work with or without a neutral wire. Wireless-capable options can connect with keypads, companion dimmers, sensors, remotes, or lighting control systems for local and remote operation.

Check the LED fixture or lamp’s dimming method, load type, driver or ballast requirements, neutral-wire needs, and total load rating, then select a dimmer that supports those conditions. For 0–10 V LED drivers or electronic ballasts, use a compatible 0–10 V interface, while phase-selectable dimmers can support a broader range of compatible LED loads.