Features 1、Lightweight and portable, easy to carry, suitable for outdoor biking, mountaineering, hiking, camping, traveling, etc. 2、The conversion efficiency is high, the output efficiency is good, you can put the panel in the sun, and then use it to directly charge the device. 3、It has a wide range of use and strong applicability, and is used to charge MP3 mobile phones, mats or other controlled devices. 4、With dual female USB ports, you can easily charge the device through a USB charging cable. 5、Suitable for car batteries, automobiles, RVs, ships, airplanes, satellites, space stations, outdoor breeding, planting, tourism, solar street lights. Specifications 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: 50A Voltage: 12/24V automatic USB Voltage: 5V 2A Standby Current: <10mA Package List 1 x Solar Panel 1 x Controller 1 x Crocodilian Clip 4 x Suction Cup 1 x Connection Line 2 x Chinese and English Manual