AC/DC Adapter

To Support Fan Day & Night Time Nonstop Running 

 The solar fan runs directly powered by solar panel in sunny hours, and keeps running by auto-switchover to grid power in sunless time.

AC/DC Power Adapter

Smart controller

The prime pricinple of the solar fan is energy saving so the fan will not waste any AC grid power when not necessary, which is decided by the smart controller inside the fan. This controller will keep sensing output of the fan's solar panel. When output is low to certain level, it will switch in the electricity. And when output rises to certain voltage, it will cut the electricity to avoid any unnecessary cost.