Feature:1. Protection: The dual fan is equipped with double layer metal protective net to prevent small animals from being injured and give protection to the normal operation of the fan blades.2. Environment Friendly: This solar panel fan uses solar energy for charging, so as to drive the fan to run, which is very energy saving and environment friendly.3. Portable: The fan is small and does not occupy space, which is very convenient to carry out. And the fan can be used without power, which is also very suitable for outdoor use.4. Easy to Use: You just need to connect the fan with the interface of the solar panel, put the solar panel under the sun, and then the fan can be used.5. Wide Application: This solar mini exhaust fan is suitable for pet houses, chicken houses, tree houses, dog houses, greenhouses, RV, sightseeing cars, camping, etc.How to Use:Put the solar panel in the sun and you can use the fan1. 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