Features: 1.Voltage Automatic Identification: 12V 24V automatic identification, designed with user friendly LCD display and double button operation man machine interface, easy to use. 2.Simple to Use: The solar charge controller usually have a straightforward control panel that is easy to use and configure without excessive technical knowledge. 3.Protect the Battery: The solar controller can effectively protect the solar cell, avoid problems such as overcharge and overdischarge, and prolong the battery life. 4.Multiple Protection: The solar controller has electronic short circuit protection, overcurrent protection, reverse connection protection, overcharge protection, etc., to ensure the stability and safety of the system. 5.For Sealed Battery: The regulator is only suitable for sealed batteries: OPEN, AGM, GEL, not for nickel metal hydride, lithium ion or other batteries. Specification: Item Type: Solar Charge Controller_x000D_ Material: ABS_x000D_ Color: Blue_x000D_ Battery Voltage: 12V/24V Automatic_x000D_ Maximum Solar Input: 12V Battery Up To 23V: 24V Battery Up To 46V_x000D_ Equilibrium: 14.4V_x000D_ Floating Charge: 13.7V (Default, Adjustable)_x000D_ Discharge Stop: 10.7V (Default, Adjustable)_x000D_ Discharge Reconnection: 12.6V (Default, Adjustable)_x000D_ Charge and Connect Again: 13V_x000D_ Turn On Voltage: Solar Panel 8V (Turn On Delay)_x000D_ Turn Off Voltage: Solar Panel 8V (Turn Off Delay)_x000D_ USB Output: 2 USB Outputs, 5V/2.5A (Maximum)_x000D_ Self Consume: < 10mA_x000D_ Working Temperature: -35-+ 60_x000D_ System Connection:_x000D_ 1. Connect the battery to the charge regulator positive and negative._x000D_ 2. Connect the PV module to the positive and negative ends of the voltage regulator._x000D_ 3. Connect to the charging regulator positive and negative. When uninstalling, the order is reversed! Incorrect order may damage the controller! PackageList: 1 x Solar Charge Controller 1 x Manual Note: 1. Make sure your battery has enough voltage for the controller to identify the battery type before first installation._x000D_ 2. The battery cable should be as short as possible to minimize loss._x000D_ 3. The regulator is only suitable for sealed batteries: OPEN, AGM, GEL, not for nickel metal hydride, lithium ion or other batteries._x000D_ 4. The charge regulator is only suitable for regulating solar modules. Do not connect other charging power sources to the charge regulator.