【GREAT COMBINATION】: This mini solar panel with cooling fan is a great combination, it's suitable for greenhouses, dog house, trailers, RV and so on. Also can be used for charging mobile phones.
【HOW TO USE】: There is no rechargeable battery in the fan. If you need the fan to work at night, you can use the power pack. When connected to a solar panel, the way the fan works depends on the sunlight. When the sunlight is strong, the fan works quickly.
【EASY TO CARRY】: This solar panel set is portable, small size, easy to carry around. No batteries needed, super silent and green energy.
【POWER DEVICES FOR CHOISE】: The fan starts to operate when plugged to the solar panel and it can also get power from other USB devices, such as power bank, computer, etc.
【INFORMATION OF PRODUCT】: The solar panel size is approx. 14.5x14.5cm / 5.7x5.7in. The cooling fan size is approx. 13.5x15cm / 5.3x5.9in.