4 ms·

If the heating element is thermostat-driven, and not on all the time, then yes.

• ars 17y ago
  Hopefully not a thermostat but rather a proximity or a frost sensor.
  • evgen 17y ago
    No, use a thermostat. It is much simpler, less prone to errors, you only need one per light housing, and the energy cost required to keep the shrouds above 34 degrees is quite insignificant.
    • pavel_lishin 17y ago
      You could probably get away with having one per block; aren't most traffic lights all connected? Or have I just been watching too many movies where hackers take over streetlights?
      • evgen 17y ago
        Putting one per light housing means it gets added at the manufacturer and you don't need to do any additional wiring or setup at installation time.
    • phil 17y ago
      What if it's dry but cold?