Features 1Characteristics: Monocrystalline silicon solar panel PET bottom layer no glass durable light weight easy to install and use high conversion rate intelligent circuit dual USB+DC output interface. 2LCD Display: LCD display adjustable charging and discharging parameters with power off memory function can clearly display status and data and can easily switch modes and parameter configuration. 3Multiple Protection Functions: Built in overcurrent protection short circuit protection open circuit protection and reverse connection protection are all self recovery types which do not damage the controller. 4Cooling Fan: The cooling fan is powered by the solar panel easy to install just connect the interface of the solar panel and the fan and then put it in the sun to use. 5Uses: Can be used as an emergency power supply to charge devices such as mobile phones power banks laptops tablets cameras etc. Specification Item Type: Solar Panel KitMaterial: Monocrystalline Silicon + PET Laminate + Plastic Controller ShellProduct Size: Solar Panel: Approx. 36 x 33cm / 14.2 x 13.0in Controller: Approx. 13.3 x 7 x 3.2cm / 5.2 x 2.8 x 1.3inSolar Panel Chip: Monocrystalline Silicon CellSolar Panel Power: 25WSolar Panel Short Circuit Current: 0.5ASolar Panel Output Interface: Dual USB PlusDC InterfaceController Current: 20AController Maximum Photovoltaic Input Power: 300w (12v) 600w (24v)Controller Standby Current: <10maController USB Output: Dual Usb Output 5V / 2.5A (maximumController Operating Temperature: -35 to 60Conversion Rate: 21% Package List 1 x Solar Panel1 x Fan1 x Car Charger Connector1 x Battery Crocodilian Clip Cable4 X Sucker1 X One to Ten Data Lines1 X Solar Panel User Manual1 X Controller1 X Controller User Manual Note Notes on solar panels:1. When charging please make sure the surfaces of the solar panel faces the sun2. Avoid contact with impact objects and other incisive objects3. Do not bend the solar panel too much so as not to break4. Keep the panel surfaces clean when charging to maintain high efficiency of solar power generationController Notes:1. The controller is 12V/24V automatic identification when installing for the first time please make sure that the battery has enough voltage so that the controller can identify the correct battery type. In order to protect the life of the battery once the battery voltage is lower than 8V the solar controller will automatically shut down2. Install the controller as close to the battery as possible to avoid voltage drop caused by too long wires and affect the normal voltage judgment3. This controller is only suitable for various leadacid batteries (including openings seals gels etc.) please do not use other batteries (including lithium batteries nickelhydrogen batteries etc.)4. The controller can only use photovoltaic panels as the charging source please do not use DC or other power sources as the charging source5. The controller will heat up when it is running. The operating temperature of the controller is 35C to +60C. Please install the controller on a flat and wellventilated surfaces.6. The LCD display of this controller has an error of 0.2V0.3V but this is normal7. Please note that the new type and old type of this product will be sent randomly and make sure you will not mind before ordering.