This item is equipped to avoid overcharging, over-release, short circuit, overcharging and reverse connection of the solar battery. It uses the characteristics of the battery discharge rate to correct the discharge control. And it uses a tandem type PWM main charging circuit to effectively improve charging efficiency. The LED indicator shows the current situation of the batteries so that the customer can get information about the batteries. Three operating modes can be selected: close mode, pure light control mode and light control plus time control mode. Specification: Condition: Material: plastic. Colour: black. Voltage: 6 V/12 V. Current: 3A. Working temperature: -20℃~55℃. Protection level: IP30. Product size: approx. 6.9 x 5.4 cm / 2.7 x 2.1 inches. Product weight: approx. 43 g. Package includes: 1 x solar charge controller. Features Use the characteristics of the battery discharge rate to correct the discharge control Three operating modes can be selected: close mode, pure light control mode and light control plus time control mode Equipped with a device to avoid overcharging, over-release, short circuit, overcharging and reverse connection of the solar battery Uses a tandem type PWM main charging circuit to effectively improve charging efficiency The LED indicator shows the current situation of the batteries so that the customer receives information about the batteries