Specification: Item Type: Solar Panel Kit Material: Monocrystalline Silicon Color: As shown in the picture Product Size: Approx. 280x280mm / 11.02x11.02in Controller Size: Approx. 133x68x35mm / 5.24x2.68x1.38in Weight: Approx. 577g / 20.4oz Power: 40W Open Circuit Voltage: 18V Short Circuit Current: 2A Output Voltage: DC 18V&9V, USB 5V Waterproof Rating: IP65 Conversion Rate: 23-24% Controller Parameters: Controller Rated Current: 20A Voltage: 12/24V automatic USB Voltage: 5V 2A Standby Current: <10mA Package List:1 x Solar Panel1 x Controller1 x Crocodilian Clip4 x Suction Cup1 x Connection Line2 x Chinese and English Manual Note:1. Please allow 1‑2in error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.3. Without power storage function. Features The solar panel kit has a wide range of uses, which is applicable to car batteries, cars, RV, ships, aircraft, satellites, space stations, outdoor farming, planting, tourism, and solar street lamps. The solar panel kit is used to charge MP3 mobile phones, mats or other controlled devices. It is easy to use and powerful. With the dual female USB port, you can easily charge the device through the USB charging cable. The solar panel kit has high conversion efficiency, good output efficiency, low light efficiency, light weight and strong applicability. The solar panel kit is portable and easy to carry. Which is very suitable for outdoor cycling, mountaineering, hiking, camping, traveling, etc. The solar panel kit is easy to use and easy to operate, so you can put the panel in the sun and use it to directly charge the device.