I love these GE Cync Smart LED Downlights. They were super easy and quick to install - just unhook the old and hook up the new. I installed them with my existing light switches, but if you use a smart switch you can enable voice commands. In the Cync app (and with the regular switch) lights can be set to a variety of light settings from warm to cool, dimmed, scheduled to turn on and off, or even create a colored light show. The app was easy to use. I would definitely buy these lights again.