1. Provide outdoor green energy solutions - specializes in providing outdoor green energy solutions for researchers. Portable power station, outdoor electricity. Ideal for outdoor living and even in the event of an unexpected power outage 2. Dissipates heat in time and can work at night - sunlight creates warm air, and the fan immediately rotates to dissipate heat in time and provide ventilation. If you want the fan to work at night, you can use a power adapter, which is easy to install and use. 3. Durable and easy to use - The outdoor solar panel, which uses monocrystalline silicon materials, converts sunlight into electricity. When connected to the solar panel, the fan can operate without a rechargeable battery 4. Durable and conversion rate - The solar collector is made of polycrystalline silicon material, which is resistant to compression and corrosion. Conversion rate, energy saving without energy storage function 5. Features – A polysilicon solar charger is a device that absorbs sunlight and directly or indirectly converts it into electrical energy through photovoltaic or photochemical effects.