Features： 1、Characteristics: 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. 2、LCD 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. 3、Multiple 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. 4、Cooling 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. 5、Uses: 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 Kit Material: Monocrystalline Silicon + PET Laminate + Plastic Controller Shell Product 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 1.3in Solar Panel Chip: Monocrystalline Silicon Cell Solar Panel Power: 25W Solar Panel Open Circuit Voltage: 5.5v Solar Panel Working Voltage: 5v Solar Panel Short Circuit Current: 0.5A Solar Panel Working Current/Voltage: USB: 1.8A 5V / DC: 1.38A 18V Solar Panel Output Interface: Dual USB Plus DC Interface Controller Voltage: 12v / 24v Automatic Identification Controller Current: 20A Maximum Pv Voltage: 12v Battery, Up to 23v, 24v Battery, Up to 46v (up to 50v Without Load) Controller Maximum Photovoltaic Input Power: 300w (12v), 600w (24v) Controller Standby Current: <10ma Controller USB Output: Dual Usb Output, 5V / 2.5A (maximum） Controller Operating Temperature: -35℃ to 60℃ Conversion Rate: 21% Package List： 1 x Solar Panel 1 x Fan 1 x Car Charger Connector 1 x Battery Crocodilian Clip Cable 4 X Sucker 1 X One to Ten Data Lines 1 X Solar Panel User Manual 1 X Controller 1 X Controller User Manual