They could also save on their electric bills which would save on production costs which could also help the environment.

I remember seeing a program a few years ago about streetlights needing to be redirected so that their light fell onto the ground NOT be pointed up into the sky. Some cities were making the change and it was specifically to stop light pollution so that one might see the stars and also have better lighting down on the ground where mere mortals walk.

Thanks, Peg, no security lights here but our neighbours shines right in my eyes at night so that I had to place a piece of material outside to block it yet still be able to open my window and get fresh air.