Features 1LCD Display: The solar controller adopts LCD high definition digital display which is clearly visible; The parameters can be adjusted to meet different battery requirements. 212V 24V Automatic Identification: This solar controller can automatically detect 12V and 24V system voltage widely used for home and outdoor. 3USB Charging Port: The controller supports charge for most USB port devices on the market such as mobile phones tablets for PSP game consoles Bluetooth headsets cameras and other digital products. 4Overcharge Protection: This solar panel battery regulator can effectively prevent excessive charging and discharging provide protection for the battery and extend the service life. 5Plastic Housing: The solar charge controller adopts engineering plastic housing which has high strength impact resistance and high burning point. Specification Item Type:SolarChargeControllerProduct Material: PlasticGross Weight: 142g / 5.0ozProduct Size: 13.2x6.7x3.2CM / 5.2x2.6x1.3inUSB Output: 5V 2.5AStandby Current: <10mAWorking Temperature: -35 - +60 Package List 1 x Solar Controller1 x Instructions Note Only photovoltaic panels can be used as charging sources.