Product Overview:1.Use single-chip microcomputer control which makes the controller has the advantages of intelligent， strong adaptability， reliable function.2.Use PWM charge mode， which can improve system efficiency and prolong the life span of the battery.3.Clear charge state， discharge state and battery power display.4.Adopts the modified shell which accords with air flow， has better cooling effect(compare with the old version).5.Optimize the assembly design， the structure more stable(new shell use 4 screws， old version use 2 screws.)Protection Function:1. Over-load protection 2. Short circuit protection 3. Lightning protection4. Under-voltage protection 5. Over-charging protection6. Reverse polarity protectionInstallation Instructions:Open the top cover of controller and connect the wire with terminals as the diagram on the top cover of it.1. Connect the "+"，"-" poles of the battery to the corresponding ports of controller (the third and the fourth one from left).2. Connect the "+"，"-" poles of the solar pannel to the corresponding ports of controller (the first and the second one from left).3. The charge indicator: While charging， the charge indicator will be green light ON.4. Connect the "+"，"-" poles of the load to the corresponding ports of controller (the fifth and the sixth one from left).Note: If there is connection error， it may damage your controller.Function Features:LCD DisplayCharge: the left arrow display， when the left arrow flickers，it means the solar panel is charging，the battery is in the state of full charge of float charge.Discharge: when the load output switch is ON， the right arrow display， it is allowed to discharge.When the controller has discharge current， the right arrow flickers.Failure interface: when short curcuit or over load occurs，the failure interface appears.At this time， you can press the load output switch to close the output or just wait. After finish trouble shooting，the output recovers automatically.If short circuit lasts over 30s， the controller automatically close the output.Load output switch: the output switch default open， when the interface appears LOAD or the right arrow， the load output of the controller is permitted. When the battery is under the voltage， the output stop， the output switch could not work.Only when the battery voltage returns to Normal， the output switch can be operated.Parameters:Rated voltage: 12V / 24VRated charge current: 10ARated discharge current: 10ARated voltage: 10.5V or 21.0VDischarge recovery: 12.2V or 24.4VVoltage of stop charging: 14.7V or 29.4VWorking temperature: -20 ~ +60℃Temperature compensation: -3mV/°C/cellDimension of controller: (L*W*H)103 x 95 x 38(mm)Packing Size(L*W*H): 115 x 102 x 55(mm)Package Includes:1 x Solar charge controller1 x English User manual