This Wi-Fi enabled dimmer switch allows for single pole setup, or use multiple Dimmer Switches for 3- and 4- way functionality, providing unparalleled flexibility anywhere in your home. Customize dimming range to prevent low-level bulb flicker and make subtle brightness adjustments with the power of your voice through Siri, Alexa or the Google Assistant. With intelligent features like brightness memory and a sleek, integrated design, the iDevices Dimmer Switch will transform any house into a smart home.120VAC, Neutral Wire Required