How to Use：1. Before use, please ensure that the positive and negative poles of this product are connected with the positive and negative poles of the load. 2. If there are no professional technicians, please do not try to change the circuit or use method of the product. Our company will not be responsible for disassembling the product or changing the circuit without authorization. 3. The best working time of the product is 9 o'clock in the morning to5 o'clock in the afternoon (better in sunny weather). Specification: Item Type: Solar fan Material: ABS, monocrystalline silicon Weight: Approx. 705g/24.9oz Power: 5W Voltage: DC 12V Short Circuit Current: 1.2A Working Current: 0.8A Size of Solar Panel: 30x18cm/11.8x7.1in(Without power storage function) Fan Size: 12x12x2.5cm/4.7x4.7x1in Package List: 2 x Solar Fan1 x Solar Panel 20 x Accessory Note: 1. Please do not scratch the surface of the solar panel with incisive objects. 2. When charging with solar energy, please place the solar panel upward in direct sunlight to ensure the best charging effect. 3. Please do not put the charger outdoors as an emergency charger in rainy days, so as not to cause a short circuit. The USB is downward and waterproof grade is IP65.