2 ms·
> If you live in a climate where it's too cold for heat pumps to function Year round? So you mean the polar regions? Because they can work even at -10F. Effici
by outworlder 5y ago
> If you live in a climate where it's too cold for heat pumps to function
Year round? So you mean the polar regions? Because they can work even at -10F. Efficiency is reduced, but they can work. Crappy ones will cutoff earlier though. If you are not in one of the planet's poles, we have seasons so it's better to use LEDs for at least 3/4 of the time (maybe more as even northern latitudes only have a few really severe winter days).
Modern LED lamps are tiny and use very little material. Incandescent bulbs are no longer considered 'exotic' because of how old the tech is, but tungsten was a very exotic material at some point.