Feature:1. Suitable for car battery, saloon car, ship, aircraft, satellites, space station, planting, tourism, solar street lamp.2. With dual mother USB ports, allow easy charging of the device through USB charging cable.3. High conversion rate, good output efficiency, low light efficiency, perfect for emergency charging.4. Can put the panel out in the sun, to charge your MP3, mobile phone, mat, or other controlled device.5. Light weight, perfect for outdoor cycling, mountaineering, hiking, camping, tourism, etc.Specification:Item Type: Solar Panel KitMaterial: MonocrystallineWeight: Approx. 1150g / 40.6ozProduct Size: Approx. 36x33cm / 14.2x13.0inController Product Size: Approx. 13.3x7x3.5cm / 5.2x2.8x1.4inMaximum Power (PMAX): 25W x 2Open Circuit Voltage (VOC): 20VMaximum Power Voltage (VMPP): 18VShort Circuit Current (ISC): 2.6AMaximum Power Current (IMPP): 2.23AOutput: DC18V USB 5VStandard Test Conditions: AM=1.5 Irradiance=1000W/㎡ Temperature=25℃Controller Parameters:Rated Voltage: 12V 24V AutomaticRated Current: 40AOnly Suitable Batteries: For OPEN AGM GELFeature: Without power storage functionScope of Application: Car batteries, automobiles, RVs, ships, airplanes, satellites, space stations, outdoor breeding, planting, tourism, solar street lights. Package List:2 x Solar Panel1 x 1-to-10 USB Cable1 x 1-to-2 Cable1 x Connecting Cable8 x Suction Cup2 x Buckle1 x Adapter Cable1 x Battery Clip1 x Controller2 x Chinese and English ManualNote:1. Please allow 0‑1 inch 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.