SOLAR CONTROLLER - Battery Regulator control,charge / discharge safety protection Big LCD DISPLAY - various control parameters can be flexibly set, fully meet your various application requirements. MORE PROTECTION - Build-in short-circuit protection,open-circuit protection,reverse protection,over-load protection PARAMETER - Battery Voltage: 12V/24V, auto & Charge Current: 60A & Discharge Current: 60A PWM CHARGE CONTROLLER - Extend battery life.fit for Lead Acid Lithium-ion LiFePO4 Battery