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Pro No neutral wire required
Unlike most switches, the Caséta works without a neutral wire. This means it will be easy to install in older homes that lack neutral wires.
Pro Includes remote
If you sometimes want to use a physical remote instead of always using Siri, you can. The remote's battery is rated for 10 years. It comes with a mount which can be mounted to a table or the wall for extended control.
Pro Powerful Siri integreation
Once all setup, you can turn off lights in each room and also each zone. For example, you could turn on just your bedroom lights, or the bedroom as well as any other room upstairs if you've included the bedroom in the upstairs zone.
Con Less convenient when plugging/unplugging lights
This switch only controls two lights at a time which need to be plugged into the switch. This also means that the switch itself needs to be plugged into a wall socket, which are typically low to the ground making the wall switch harder to reach.
Con Apple TV required for remote control
If you are away from home and want to turn on lights, or check to see if any lights are on, you will need an Apple TV. If you already have one, this isn't a big deal however for many out there this will add another device and another initial startup cost.
Con Clunky setup
You need to download a separate app, create an account for it, and add each device separately to the app.