Check the listing for details. 12/24V 10-100A MPPT PWM Solar Charge Controller Regulator Auto Focus Tracking. Color: As pictures, Condition: New. Listed at 6.99 USD. MPPT Solar Charge Controller: Note: Only MPPT Type have Auto Focus Tracking function, PWM type doesn't have! As the most high-end and advanced solar charge controller, it charges the battery with the max power, MPPT tracking efficiency is 99%, and the whole system has a high power generation efficiency of 97%. Features: This product provides short-circuit protection,open-circuit protection, reverse protection, overload protection. Automatic focusing MPPT tracking charging, high charging efficiency, non-stop detection during charging, bidirectional focusing tracking. MPPT solar controller can detect the voltage and current of the solar panel in real time, and constantly track the maximum power, so that the system can always charge the battery with the maximum power. The tracking efficiency of MPPT is 99%, and the power generation efficiency of the whole system is up to 97%. Moreover, the system has excellent battery management, including MPPT charging, constant voltage average charging and constant voltage float charging. Specifications: MPPT Solar Charge Controller Battery voltage: 12V/24V Auto Adapt Material: ROHS+ABS Item color: blue+black Charge current: 30A/40A/50A/60A/100A (optional) USB output: 5V 2A Item size: 170 * 95 * 40 mm / 6.69 * 3.74 * 1.57 in Item weight: 260 g / 9.17 ounce Package size: 175 * 100 * 45 mm / 6.89 * 3.94 * 1.77 in Package weight: 295 g / 10.41 ounce PWM Solar Charge Controller Features: 1.Build-in industrial micro controller. 2.Big LCD display,all adjustable parameter. 3.Fully 4-stage PWM charge management. 4.Build-in short-circuit protection,open-circuit protection,reverse protection,over-load protection. 5.Dual mosfet Reverse current protection ,low heat production. Display: MENU:switch between different display,or to enter/exit setting by long press. UP: press to increase value. DOWN:presss to decrease value. Setting: 1.press the [Down] button to ON/OFF load manully at main display. 2.the work mode is working as below: [24H] load output 24hours [1-23H] load on after sunset and closed after setting hours [0H] Dusk to dawn MODEL ICharger PWM 10A ICharger PWM 20A ICharger PWM 30A ICharger PWM 40A ICharger PWM 50A ICharger PWM 60A Battery Voltage 12V 24V Auto Charging Current 10A 20A 30A 40A 50A 60A Discharging Current 10A 10A 10A 20A 30A 30A Max Solar input 50V(for 24V battery) 25V(for 12V battery) Equalization 14.4V(Sealed) 14.2V(Gel) 14.6V(Flood) Float charge 13.7V(defaul,adjustable) Discharge stop 10.7V(defaul,adjustable) Discharge reconnect 12.6V(defaul,adjustable) Charge reconnect 13V Voltage of open light Solar Panel 8V(Light lights delay) Voltage of close light Solar Panel 8V(Light off delay) USB output 5V/3A Self-consume