Features: 1.Premium Material: Solar panel is made of monocrystalline silicon and PET material, wear resistant, waterproof, sturdy and durable. 2.Solar Power: Solar battery charger faces the sun will generate electricity to trickle charge the battery, high efficiency, more convenient and practical. 3.Safe: Built in safety circuit, can prevent the battery from overcharging and reverse charging, protect and prompt the reverse connection of the circuit. 4.Easy Installation: Easy to install, come with complete accessories, no professional knowledge and additional maintenance is required, save your time and energy. 5.Wide Application: Suitable for 12V batteries of cars, motorcycles, boats, snowmobiles, tractors etc, also perfect for mobile phones, tablets, etc. Specification: Item Type: Solar Panel Material: Monocrystalline silicon and PET Voltage: Dual USB Port: 5V Battery Clip DC Port: 12-18V Cigarette Lighter Cable DC Port: 12V Power: 20W Current: 2A Conversion Efficiency: 23-24% Size: Approx. 355x240x2mm/13.98x9.45x0.08in Usage Scenario: Suitable for RV, car continuous charging outdoor emergency charging, mobile phone emergency charging, 12v battery charging, etc.