solar charger controller 20A

20A PWM Solar Power Organizer with LED display showing battery data and level, and overload protection, operates on 12V / 24V system, high quality in current regulation, panel voltage capacity 50 PV, load working mode optional, light sensor and programmable timer, battery type selection: gel, dry, lead acid, gel, lithium optional, charge and discharge current display, major functions, humanized LCD display, PWM 3 stage charging, load working mode optional, light sensor and timer programmable, battery type flood, lead acid, gel, lithium optional, charge and discharge current display, overall effective protection.