Ja, most street lights connect to the power grid of the city. The original power is 220/110 V AC, and the transformer within the light will change it to DC with a lower voltage. Auf diese Weise, it takes advantage of the basic infrastructure of the city and makes management easier. Jedoch, there are also other ways of power supply in different places. Zum Beispiel, in some remote areas where it is hard to access the grid, the street lights are off-grid. These lights use solar power or the wind to generate light.
Mehr Lektüre: Dorf Solar Street Light: Vorteile und Schritt-für-Schritt-Anleitung
