A solar energy fan is a mechanical fan powered by solar panels. The solar panels are either mounted on the device or are installed independently.
USD 10 -
Solar energy fans mostly do not require secondary power sources other than solar power, as most of them are used for cooling purposes during day time. Many have built-in batteries, so that you can run the fan more independently from the sun. Some types are also used for heating purposes. It runs the fastest when it is the hottest outside providing savings on air conditioning costs.
