Fangrui Product Details [100a Solar Charge Contraller] Solar Charge Controller Compatibility For 12v And 24v System, Advanced Maximum Power Point (pwm) Technology Can Improve Efficiency By -. [multiple Intelligent Protection] Built-in Overcurrent Protection, Short Circuit Protection, Reverse Connection Protection, Open Circuit Protection, All Automatic Recovery, No Damage To The Controller, A Reliable Protector For Your Devices [large Lcd Screen] Easy To Install And Operate, Intuitive Lcd Display That Can Clearly Indicate The Status And Data Is Able To Switch Modes And Parameter Configuration, The Level Of Complete Power-off Is Adjustable, Which Can Perfectly Protect The Lithium Battery From Over-discharge, Suitable For Home, Industrial, Commercial Etc [please Note] The Solar Controller Is Only Suitable For Lead-acid Batteries: Open, Agm, Gel, Not Suitable For Nickel Metal Hydride, Lithium Ions Or Other Batteries. The Built-in Industrial Mini Controller Can Automatically Manage The Work Of Solar Panel And Battery To Cha