14-11-2014, 10:26 AM
Abstracts: Solar energy is a renewable source of energy, which is long-lasting and no pollution type. It can be easily utilized and also a cost effective in long term. Solar street light do not need staff for management and control and it can easily stalled in public places like hospital, school, street etc. LED lamp is generally used because of long life and energy saving (low watt). LED street lamp is compact and shock resistive with energy efficient. Intensity of street lights is required to be kept high during the night hours. Thus, the street lights switch ON at the dusk and then switch OFF at the dawn automatically. The process repeats every day. Photovoltaic panels are used for charging batteries by converting the sunlight into electricity. A charge controller circuit is used to control the charging. The project is designed for LED based street lights with auto intensity control using solar power from photovoltaic cells.