Feature:1. When the battery is power‑off or insufficient, solar energy is used to charge batteries of automobiles, motorcycles, snowmobiles and tractors.2. It is a built‑in maintenance‑free solar panels, with simple operation and long service life.3. Easy to use, just plug the solar charger into the car's interface and place the panel in as much sunlight as possible.4. You can use the included clip to connect it directly to the battery, attach the to the windshield with two suction cups, or connect it to the sun cover by back panel.5. 18V portable solar panel, small and lightweight, easy to carry and storage, a good choice for your outdoor activities.Specification:Item Type: Solar PanelMaterial: Monocrystalline SiliconColor: As Picture ShownProduct Length: Approx. 33.5cm/13.2inProduct Width: Approx. 12.5cm/4.9inWeight: Approx. 324.0g/11.4ozNo-Load Voltage: 18-23V DCLoad Voltage: 18VOutput Current: 250-280mAh (0.2A-0.28A) Package List:1 x Solar Panel1 x Clip1 x Charger2 x Carabiner2 x Accessory1 x Chinese English ManualNote:1. Please allow 0‑2cm/0.4‑0.8in 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