Fully powered by solar energy, extremely quiet, water resistant and with IN/OFF/OUT switch
Measuring 8.58" diameter, outer height: 1.3"
Ventilation fan cut out diameter 4.73~5.12"
[With battery version] Built-in rechargeable battery, after full charge in the day time, it can work 6-8 hours at night (with no sunlight), don't worry if the fan is not working at the moment, after 2 days sunshine it will start spinning again. [Without battery version] Comes with intake, exhaust blade can move the air up to 1000 cu.ft. per hour when with direct sunlight.
Comes with intake, exhaust blade can move the air up to 1000 cu.ft. per hour when with sunlight and 900 cu.ft per hour at night