Feature: 1. Efficient charging function: Using monocrystalline silicon solar cells, the photoelectric efficiency reaches 21%, the working current is larger, and the charging speed is faster, providing a fast charging experience for your device. 2. Multi functional design: Equipped with dual USB charging ports and DC5521 female battery clip interface, it can simultaneously charge 5V devices such as mobile phones and sports cameras, as well as 12V batteries for cars, ships, etc., meeting the charging needs of different devices. 3. Portable design: Lightweight and easy to carry, suitable for outdoor use, convenient for camping, hiking, travel and other activities, charging your device anytime, anywhere. 4. Durable material: The surface material is made of frosted PET, which improves the scratch and corrosion resistance, protects the solar panel from external damage, and extends its service life. 5. Environmental Protection and Energy Conservation: By using solar energy for charging, there is no need for an external power source, which is energy-saving and environmentally friendly. It provides reliable power support for outdoor activities, allowing you to enjoy the convenience and environmental benefits brought by clean energy. Specification: Features: Polycrystalline silicon material: Made of high-efficiency polycrystalline silicon material, with good low light performance and higher power generation than monocrystalline silicon under weak sunlight. Portable design: Lightweight and easy to carry, suitable for outdoor activities, camping, travel and other occasions, convenient for charging devices anytime and anywhere. Dual USB charging ports: Equipped with two USB charging ports, it can charge two 5V devices simultaneously, convenient and practical. DC5521 female battery clip interface: Equipped with a DC5521 female battery clip interface, it can be directly connected to a 12V battery for charging, suitable for the charging needs of vehicles, ships and other equipment. Environmental Protection and Energy Conservation: By using solar energy for charging, there is no need for an external power source, which is energy saving and environmentally friendly It provides reliable power support for outdoor activities, allowing you to enjoy the conservation and environmental benefits bright by clean energy. Specifications: Name: Solar Panel Solar Panel Power: 20W Material: PET, EVA, Polysilicon Solar Cell: Polysilicon Solar Panel Operating Voltage: 18V Solar Panel Open Circuit Voltage: 21.6V USB Output: 5V 2A Max Output Port: Dual USB, DC5521 Female Product Features: Integrated 5V voltage regulator module Product Use: Charge 5V devices such as mobile phones and sports cameras, and charge 12V batteries such as cars and boat Solar Panel Size: 415*340mm/16*13.38inch Controller Size: 130*70mm/5.1*2.75inch Controller Current: 40A Controner Power: 300W Color: As Show Package Size: 44*35*3cm Package Weight: 888g Package List: 1* Portable Solar Panel 1* 40A 300W Controller 1* Dual USB Ports Cable with 2 Clamps 1* Cigarette Lighter Line 2* Connection Cable 4* Sucker 2* Outdoor Mountaineering Buckle Package List: 1* Portable Solar Panel 1* 40A 300W Controller 1* Dual USB Ports Cable with 2 Clamps 1* Cigarette Lighter Line 2* Connection Cable 4* Sucker 2* Outdoor Mountaineering Buckle