Power Source
Solar/solar+AC/solar+battery, 3 types
Function
air circulation, reduce air conditioning loading
fan case material
galvanized steel with outdoor powder coating
safety level
under DC36V, safe for human body
fan blades
7 blades, nylon+fiberglass+aluminum alloy
optional AC back up
21V 1.5A
optional battery back up
16V 9.6Ah lithium