I still remember when Google promised to bring free wifi to all of the poor neighborhoods in Chicago. Amid a big frenzy of local media and politician hoopla it said was going to put access points on every streetlight. Then Google found out that when the street lights turn off, there's no power to run the access points. So it just walked away.
> Then Google found out that when the street lights turn off, there's no power to run the access points. Uh? Duh! What did they expect? A switch in every street light? (Which also would need to be controlled in some way ...)
I've seen videos of people who'd rather not have a light on outside their bedroom window at night setting up a laser pointer to point at the sensor to keep the light off.