Smart switches are often bulkier than their traditional counterparts, however; so if they don't fit in the electrical box properly, you may need to get a new box, which is probably a job for an electrician. Similarly, some older homes don't have the right wiring, so an electrician is a good idea here, too. How we test smart light switches Most smart switches depend on the presence of a neutral wire to supply energy to their radios, but many homes built prior to the 1980s don’t have a neutral wire in every box. GE Cync and Lutron Caséta are among the few smart switches that don’t depend a neutral wire. While the previous Hue Smart Dimmer had separate on/off buttons, the v2 Switch has them as one. The switch also detaches from the wall mount itself, doubling as a convenient remote control.

It replaces your existing light switch and can be paired with the Lightwave Link Plus to control your lights from anywhere. You can set schedules, create timers, and adjust the mood of your home room by room. The dimmer switch is compatible with dimmable LED bulbs and requires a Wi-Fi router with broadband internet connection. Setting up different scenes and moods for certain activities like watching a movie, reading a book, or entertaining

For those who have one of the best smart home hubs, the Jasco Enbrighten Z-Wave dimmer is a very good smart light switch. It's a cinch to install, as there's no neutral wire needed and the terminals are agnostic. A simple paddle switch handles both on/off duties as well as dimming functions.

Lutron’s Aurora Smart Dimmer prevents a conventional toggle switch from shutting off the power to any Philips Hue smart bulbs that connected to the switch. It can also wirelessly control those bulbs, including dimming them by rotating the knob. The only downside is that the switch, like all of Lutron's products, must be linked to the Smart Bridge. The bridge itself must be plugged into your router so that you can control it from your smartphone.

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It has a maximum dimmable load of 280W (non-LED) and a current rating of 1 Amp. It comes with a 2-year manufacturer's warranty.