How does a thermal photo control street light work?

I learned something about electromagnetic photocell street lights, and now I want to know how to recognize thermal photocontrol street lights.

The thermal photocontrol street lights use thermal relays instead of electromagnetic relays. So there will be a heater heating up devices like the bimetals and then actuating the mechanical contact. One of the advantages of thermal photocontrol is that the relay has less power than the electromagnetic relay. Another merit is that its slow response will not violate the photo control, causing shades or flashes.

More reading: Design Guidelines for LED Street Lighting in Smart Cities

What Others Are Asking

How to illuminate the street with temporary lighting?

There is a company carrying out civil work in my neighborhood, and they need to install pipes. The street lighting in the streets cannot work now, which has caused a few accidents. Any advice about how to set up temporary lighting?

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