Feature: 1. Used to charge MP3 mobile phones, mats or other controlled devices. With dual female USB ports, you can easily charge the device through a USB charging cable. 2. Wide range of applications, suitable for outdoor bicycles, mountaineering, hiking, camping, traveling, etc. 3. Lightweight and easy to carry, you can put the panel in the sun and use it to directly charge the device. 4. Suitable for car batteries, automobiles, RVs, ships, airplanes, satellites, space stations, outdoor breeding, planting, tourism, solar street lights. 5. The conversion efficiency is high, the output efficiency is good, the light efficiency is low, and the applicability is strong. 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: 10A 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 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.