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 Solar panel kits are suitable for car batteries, cars, RVs, ships, airplanes, satellites, space stations, outdoor farming, planting, tourism, solar street lights. The solar panel kit has high conversion efficiency, good output efficiency, low light efficiency, light weight and strong applicability. The solar panel charger is easy to use and can charge the device directly by placing the panel in the sun. The solar panel charger can be used to charge MP3 phones, pads or other controlled devices, with dual female USB ports, you can easily charge your devices via a USB charging cable. The solar panel charger is light and portable, easy to carry, suitable for outdoor riding, mountaineering, hiking, camping, traveling, etc.