A charge controller regulates the energy flowing from PV arrays into batteries. It prevents batteries from overcharging. It converts a higher voltage DC output from solar panels to lower voltage for batteries. It comes with inbuilt DC output to run DC appliance such as charging mobile phones, running fans, lights on solar charge controller. There are three ratings available in luminous solar charge controller 6 amps, 10 amps, and 20 amps, It supports solar panel from 125 watt – 800 watts.