5W Solar Panel Fan with USB Output - Portable Ventilation System for Greenhouses Sheds &amp Pet Houses Automatic Cooling Adjusts to Sunlight Intensity

- Dual Power Options: Operates via included 5W solar panel or USB port for flexible use in sunlit and indoor environments with 120cm cable length for convenient placement - Automatic Solar Activation: Fan activates instantly under sunlight with speed adjusting based on intensity providing no hands ventilation for greenhouses and sheds without wiring requirements - Efficient Heat Dissipation: 137mm diameter fan rapidly expels hot air from enclosed spaces maintaining comfortable temperatures in areas like chicken coops and pet houses - ?Wide Application:? Suitable for cooling greenhouses, sheds, pet houses, or any small space requiring airflow, with automatic operate based on sunlight intensity. - Complete Package Contents: Includes solar panel USB fan and instruction manual offering immediate setup for outdoor and indoor ventilation needs