Feature: 1. Solar Panel Integration: By attaching the solar panel to a baseball cap, users can not only shield themselves from the sun but also conveniently store energy to charge their devices while on the go, enhancing both practicality and sustainability. 2. High Efficiency 20W Power Output: Engineered with a high power 20W output and voltage regulator technology, this solar panel hat guarantees fast and stable charging at the standard 5V voltage, delivering reliable performance for all charging needs. 3. Dual USB Interface: With its advanced design featuring dual USB ports, a Type C port, and a DC port, this solar panel hat enables users to charge multiple devices simultaneously, ensuring convenient and versatile power supply solutions. 4. Eco Friendly: This solar panel hat boasts a unique round appearance, harnessing solar energy for eco friendly and energy efficient charging, making it a great companion for outdoor adventures. 5. Portable and Versatile: This solar panel hat is a great companion for outdoor enthusiasts engaging in activities such as camping, hiking, and fishing, ensuring a convenient and reliable power source wherever the adventure takes them. Specification: Item Type: Solar Panel Hat Material: ABS, monocrystalline silicon Weight: Approx. 428.00g/15.1oz Solar Panel Diameter: Approx. 25.3cm/9.96in Solar Panel Power: 20W (without battery storage function) Output Ports: 2x USB, 1x Type C, 1x DC Voltage: 5V. Package List: 1 x Solar Panel 1 x Hat 2 x Accessories