Smart appliances and Internet of Things products are growing to be quite myriad, but they sometimes speak different languages that you need hubs to translate them. Not so LEDVANCE's SYLVANIA Smart Multicolor A19 LED bulb. Everything it needs to be smart is inside it already. All you need to do is screw it in, connect it to your iPhone or iPad, and magic the light shine. The magic is all in Apple's HomeKit app and platform.