The Lutron Caseta In-Wall Switch PRO is UL listed to work with up to 5A of lighting (LED/ELV/MLV/Incandescent/Halogen), and 3A of general-purpose fans. Can use either 120V or 277V. No neutral required. The Lutron minimum load capacitor (LUT-MLC) is included to assist non-neutral based digital switches in meeting minimum load requirements. This in-wall switch PRO is compatible with single pole and 3-way applications with an existing 3-way switch. For 4-way or multi-location applications, a Pico Remote control is required. Replace the existing switch with a Pico remote control and wall plate adapter to switch from every location (PICO-WBX-ADAPT sold separately). Use the Lutron Smart Hub (L-BDG2-WH) to connect the Lutron Caseta Use the Lutron Smart Hub to connect the Caseta Smart Switch Pro to leading smart home devices - including Alexa, Apple Home, Google Home, Ring, Sonos, and more. The smart hub doesn't rely on Wi-Fi to control lights which avoids slowing down internet speeds and allows you to stay connected even when the Wi-Fi goes down. The hub also unlocks advance features like Smart Away which randomly turns lights on and off, to make it look like you're home, even if you're away (Lutron Smart Hub, L-BDG2-WH required). Pairs perfectly with Lutron Claro wall plates for consistent color matching (sold separately).