Solar Street lights are raised light sources which are powered by photovoltaic panels generally mounted on the lighting structure. The solar array of such off-grid PV system charges a rechargeble battery which powers a CFL or LD lamp during the night.Solar street lights are stand-poer systems,and have the advantag of savings on trenching,landscaping, and maintenance costs, as well as onthe electric bills,despite their higherinitial cost compared to conventional street lighting. They are designed with batteries to ensure operation even in the worst situation..
Centralized Solar street lighting system.
Stand-alone Solar street lighting system