WiZ supports two different fan modes: summer and winter. Summer and Winter mode is basically the ability to change the direction the fan blades spin.

Summer mode

In summer mode, the fan creates a downward draft for a direct, cooling breeze.

Winter mode

In winter mode, the fan creates an upward draft to circulate the air around the room. 

Depending on your fan model, you may have additional options.

Normal mode

In normal mode, the fan rotates at constant speed, and can be in summer or winter mode.
Note that the amount of speeds that can be selected in each mode depends on your fan model.

All fans have normal mode.

Breeze mode

In breeze mode, the fan rotates faster and slower to simulate a breeze, and can be in summer or winter mode.
Note that breeze mode doe snot have any speed, as speed changes on its own.