Yeah, they'll (*snicker*) lower taxes! Maybe in your town.
In my town, on the other hand, they would find some reason to raise them, bless their evil little hearts.
If they can make a light that would allow me to see the sky a little more clearly and would be cheaper to use then there has to be some reason why people aren't buying and using it. People and especially businesses don't waste money if they can help it. So there has to be a catch somewhere.
a.cricket
The main catch is that lighting fixture stores don't stock them, and they don't stock them because no one asks for them. And no one asks for them because lighting fixture stores don't stock them.
But the big suppliers are making them and in some locations provide them because big customers, municipalities and DOT specify them.
Install a fully shielded porch light and tell your neighbors it is superior in many ways and make them jealous so they will want them too. They are really nifty, and don't glare in your face as you approach your own house. Takes getting used to, being able to actually see things you might otherwise trip over in in the glare from your porchlight.