Solar street lights are raised light sources which are powered by photovoltaic panels generally mounted on the
lighting structure. The photovoltaic panels charge a rechargeable battery, which powers a fluorescent
or LED lamp during the night.
Most solar panels turn on and turn off automatically by sensing outdoor light using a light source. Solar streetlights are designed to work throughout the night. Many can stay lit for more than one night if the sun is not available for a couple of days. Older models included lamps that were not fluorescent or LED. Solar lights installed in windy regions are generally equipped with flat panels to better cope with the winds.