But if you add solar powered lighting, remember that when there's a general power outage it's usual for the utilities to request that people flip a light switch on so that they can tell, by the presence or absence of light, whether your power has been restored. (And/or whether you're running your own generator that's gonna kill one of 'em when the pick up the downed lines.)

With a solar post light on, they might just go right past you - or think you've got a generator and skip you 'till everybody else is connected.

Another possible consideration in deciding whether you want a turn-off-able solar unit?

John