The Caseta Wireless Dimmer Switch works with up to 150 W of dimmable LED or 600W of incandescent/halogen. Existing hardwired 3-way switches will not work with this dimmer, for 3-way and multi-location applications Pico remotes must be used with this dimmer. Replace the existing switch with a Pico remote control and wall plate adapter to dim from every location (PICO-WBX-ADAPT sold separately). Use the Lutron Smart Hub (L-BDG2-WH) to connect the Caseta Smart Lighting Dimmer Switch to more leading smart home devices - including Alexa, Apple Home, Google Home, Ring, and Sonos. Not only does the Lutron Smart Hub unlock smart control and device integration - but it also doesn't use Wi-Fi to control your lights. With the Lutron Smart Hub you stay connected even when your Wi-Fi goes down and you avoid slowing down your internet speed with more devices. Enable the Smart Away feature to randomly turn lights on and off, to make it look like you're home, even if you're away (Luton Smart Hub, L-BDG2-WH required). Pairs perfectly with Lutron Claro wall plates for consistent color matching (sold separately).