1、Able to quickly store the electrical energy generated by the solar panel to the battery and provide reasonable power to the equipment. 2、Widely used in various small solar power generation systems such as landscape and lighting. 3、Features with short circuit protection, overload protection, overcharge and overdischarge protection, undervoltage protection, reverse recharging protection and reverse connecting protection. 4、As a photovoltaic controller, with stable performance and long service life. 5、Built to meet standard specification, strictly follow factory quality control. 1 x Solar Controller1 x Manual  Condition: 100% Brand NewItem Type: Solar Charge ControllerMaterial: ABSColor: As Pictures ShownApplication: Widely used in various small solar power generation systems such as landscape and lighting.System Voltage: DC12VController Self-Consumption: 10MARated Charging Current: 20AMaximum Load Current: 20AWorking Temperature: -20℃- +50℃Maximum Open Circuit Voltage of Solar Panel: 25V / 36VRated Charging Current: 20ARated Load Current: 20AOvercharge:Protection: 14.4V / 28.8VFloating Charge: 13.5V / 27VRecovery: 13.2V / 26.4VOver Discharge:Protection: 10.8V / 21.6VRecovery: 12.3V / 24.6VLoad Overvoltage:Protection: 16.5V / 34VRecovery: 15V / 30VFunction: Short circuit protection, overload protection, overcharge and overdischarge protection, undervoltage protection, reverse recharging protection and reverse connecting protectionInstructions:Open the upper cover of the controller and connect according to the diagram on the cover. 1. Correctly connect the "+" and "-" of the battery to the corresponding terminals of the controller (the 3rd and 4th wiring terminals from the left). 2. Correctly connect the "+" and "-" of the solar panel to the corresponding terminals of the controller (the 1th and 2th wiring terminals from the left). 3. Correctly connect the "+" and "-" of the load to the corresponding terminals of the controller (the 5th and 6th wiring terminals from the left). 4. The charging indicator light is normally on to indicate that it is charging strongly; flashing to indicate that it is floating charging; if it is off, it means that charging has stopped. 5. When the load indicator is normally on, it means there is output and the load can work; if it is off, it means there is no output and the load cannot work. 6. This product is used for lead-acid batteries, suitable for 17V solar panels.