Most solar lights turn on and off automatically by detecting external light using the voltage of the solar panel. Solar street lights are designed to run all night. Many can stay on for more than one night if the sun is not in the sky for a long period of time. Previous models included lamps that were not fluorescent or LED. The solar lights installed in the windy regions are generally equipped with flat panels to better face the winds.
The solar panel is one of the most important parts of a solar street lamp, since the solar panel can convert solar energy into electricity that lamps can use. There are two types of solar panels commonly used in solar street lights: monocrystalline and polycrystalline. The conversion rate of monocrystalline solar panels is much higher than their polycrystalline counterparts. Solar panels also vary in power systems.
Some of the key players influencing the market are
Philips, Tata Power Solar Systems, Bisol, Leadsun, Su-Kam Power Systems, Urja Global, Solar Electric Power Company (SEPCO), Jiawei, Yingli Solar, King-sun, BYD, Shenzhen Spark Optoelectronics S&T