Solar charge controller comes with a big LCD display that can clearly indicate the status and data, it can be conveniently switched modes and parameter configuration.Solar panel suitable for solar system, solar street lamp, smart home, solar light box, intelligent irrigation,camping lantern etc.The solar regulator is only suitable for lead acid batteries:OPEN, , , not for nickel hydride, lithium, Liions, or other batteries.Short-circuit protection,open-circuit protection,reverse protection,over-load protection, more safty for using, suitable for home, industrial, commercial etc.This controller can only use photovoltaic panel as the source, do not use or other supply as the source.