Mr. Luddite wrote:
On 2/7/2016 5:23 PM, True North wrote:

Oh oh! We build them up here in the Amherst area so the push is on for
the city and province to convert. They might have to add a heating
element controlled automatically or from the ground to use when needed.


That thought ran through my mind when I realized that several traffic
lights were working ... you just couldn't see what was on or off.
There was one that I could see red ... but it was very, very faint,
showing through the ice and snow. The green was more visible.




Leave the bottom of the deflector can open. Snow can not build up then.

On 2/7/2016 5:41 PM, Califbill wrote:
Mr. Luddite wrote:
On 2/7/2016 5:23 PM, True North wrote:

Oh oh! We build them up here in the Amherst area so the push is on for
the city and province to convert. They might have to add a heating
element controlled automatically or from the ground to use when needed.


That thought ran through my mind when I realized that several traffic
lights were working ... you just couldn't see what was on or off.
There was one that I could see red ... but it was very, very faint,
showing through the ice and snow. The green was more visible.




Leave the bottom of the deflector can open. Snow can not build up then.


Oh, it does. Nothing to do with the design of the can. The wind
driven, wet snow just gets pasted on the lenses so thick that no light
gets through. The old incandescent bulbs thru enough heat out to melt
anything that stuck and kept a buildup from happening.

Dry fluffy snow isn't a problem. It's the wet, sticky stuff.