Once the switch is installed, though, that's pretty much the end of costs. You can use it to control any connected fixtures, ...

This means only one switch has its wire connected and functioning to turn on the bulb. Which colour switch is that? Use your observation skills and common sense to figure out the answer.

We’ve added the GE Cync Full Color Direct Connect Smart Bulb as the best bulb for task ... without ever having to buy and install a dimmer switch. They also excel at making life more convenient.

Lutron’s Aurora Smart Dimmer prevents a conventional toggle switch from shutting off the power to any Philips Hue smart bulbs that are connected to the switch. It can also wirelessly control ...

Various configurations possible. Two possible diagrams shown. Turn the switch to connect the capacitor to a battery and start the charging cycle. Wait for some time after the light bulb is turned off ...