1、[Intelligent] Solar charge and discharge controller adopts automatic identification of system voltage level and intelligent PWM charging method. 2、[Flexible Settings] The control parameters of the solar charge and discharge controller can be flexibly set to meet your different application needs. 3、[LCD Screen] Solar panel charge controller has a large LCD display with support for image LCD graphic signs for a clearer display and easy button operation. 4、[Easy To Use] Solar voltage regulator PWM charger with automatic temperature compensation, adjustable charge and discharge control parameters. 5、[Protection] Solar controller built in charge and discharge safety hour accumulation, battery reverse discharge, battery undervoltage, battery reverse connection, overload, short circuit protection. 1 x Solar Controller1 x Manual Item Type: Solar ControllerMaterial: PlasticProduct Size: Approx. 13.3 x 7 x 3cm / 5.2 x 2.8 x 1.2inColor: BlackUSB Output: 5V/3A (Maximum)Output Method: USBConversion Rate: 98-99%Working Temperature: -35℃+60℃Weight: Approx. 150g/ 5.3ozScope of Application: Solar Panels, etc