C by GE smart LED bulb review: Much smarter than your average bulb
GE’s C by GE smart LED light bulbs are outfitted with Bluetooth radios, as opposed to ZigBee, Z-Wave, Wi-Fi, or something else that would require a hub (or a router) to control them. The upside of that design choice is that you don’t need to buy anything beyond the bulbs. The downside is that you can only control them locally. You can’t turn your lights on or off from afar, you can’t program them to turn on and off according to a schedule, and you can’t integrate them—as smart bulbs, at least—into a broader connected-home system.