Tony Hwang wrote:
Hi,
Nearby town of Banff installed LED street lights with solar panels.
Very cool looking light and it is cool running, no bugs get attracted
kep them clean. Cost a lot initially but for the long run, it's
winner. LED bulbs now are expensive but with time the price will come
down. I have a few small ones in the house, they use couple Watts per
bulb.

My city, Houston, is retrofitting its traffic signals with LEDs. They cost
more initially, but since the bulbs won't have to be replaced for, what,
fifty years, they should recoup the expense fairly soon.

Can you imagine what it takes to change the bulb on an overhead traffic
signal?