solar
Member
Solar powered street lights are a very good example on what can be done with the free solar electricity generated by solar PV panel. A growing number of solar street lighting projects are running in India to illuminate streets in urban and rural locations. The concept is straightforward and we shall see more countries migrating this way. Well-chosen, solar streetlights are cost-effective, cost-saving and reliable. The basic circuitry on most solar powered street lights consists essentially of an automatic battery charger fed by the solar panel and a lighting controller automated for dusk to dawn operation. Automatic lighting can be triggered by a photocell or a timer. On some models a special feature dims the light at a given time, thus allowing a longer operation time.