I imagine that powerline networking for lightbulbs would be ideal. Note the serial numbers, screw the bulbs in, plug controller into an outlet somewhere, assign

I imagine that powerline networking for lightbulbs would be ideal. Note the serial numbers, screw the bulbs in, plug controller into an outlet somewhere, assign bulbs to groups/rooms by serial#. But knowing the state of IoT they'd probably take 3-5 seconds after turning on to negotiate connection since the power had been cut, and they'll default to blinding white at full brightness during that time.