1、EASY TO USE The solar charge and discharge controller adopts automatic system voltage level recognition and intelligent PWM charging method. 2、WIDE CONTROL RANGE The control parameters of the solar charge and discharge controller can be flexibly set to meet your different application requirements. 3、LCD DISPLAY Solar controller with large screen, image LCD graphic, simple button operation. 4、TEMPERATURE COMPENSATION Solar voltage regulator PWM charger, with automatic temperature compensation, adjustable charging and discharging control parameters. 5、SAFE TO USE The solar charge controller has built‑in safety hours accumulation of charge and discharge, battery reverse discharge, battery undervoltage, battery reverse connection, overload, and short circuit protection. 1 x Solar Controller1 x Probe1 x English Manual Item Type: Solar ControllerMaterial: ABSWeight: Approx. 320g / 11.3ozProduct Size: Approx. 182x91x50mm / 7.2x 3.6x 2.0inProtection Function: Battery undervoltage protection, overload, short circuit protection, battery reverse discharge protection, battery reverse connection protection Rated working voltage 24V Solar panel voltage ≤100V Float voltage 55.2V Undervoltage protection 42.8V Undervoltage recovery 50.0V Load loss ≤30mA Circuit pressure drop ≤170mV Charging mode PWM mode