Outdoor Purpose Compact Fluorescent Lamp is suitable for illumination of streets, squares and cross roads located in areas that are not connected to the power grid. The Lamp has dusk to dawn duty cycle, requires 12V DC system voltage and 4 days of autonomy. The Lamp has temperature compensated battery set points and weather proof luminaries. The Lamp has adequate protections and indications, UV stabilised bowl and canopy and anodised aluminium reflector. The Lamp has mono/ poly crystalline silicon made module. The Lamp has tubular flooded lead acid battery and battery capacity of 75 Ah and PWM type charge controller. The Lamp requires 11W rated lamp wattage, pole mounting type and has mild steel and galvanised type finishing. The Outdoor Purpose Compact Fluorescent Lamp has automatic dusk to dawn controller/ timer operation, efficient charge controller and inverter and two step charging algorithm.