Construction And Testing Of An Automatic Security Light System Using Photovoltaic Cell:- Chigbu, Ihuoma E.

ABSTRACT

 Over the years, security posed a major concern at night due to the total darkness. The need to supply light without manually switching it on and off arises as years roll by. AC Automatic Security Light Control System is a simple yet powerful concept, which uses Photo - Voltaic Cells as a switch. This paper presents how solar energy is being harnessed to control AC security light and virtually removes manual works to 100%. The system automatically switches ON lights when the sunlight goes below the visible region ofthe eyes. This is done by X configuring the photo-voltaic cell (solar panel) as a sensor which senses the light actually like the human eyes. It automatically switches OFF lights whenever the sunlight comes, visible to the eyes. By using this system energy consumption is also reduced because presently the manually operated street lights are not switched off at sunlight nor switched on earlier before sunset.