As early as the "220V Cooling Fan"
At this time only a simple electric fan blowing function, use is made of metal, in the control of relatively inflexible, only wind speed stall and turned other simple regulation.
With the timing of the "220V Cooling Fan"
Then the fan blade material from the beginning of the metal into the plastic, with the timing, the timing of the fan operating mode from the knob, touch action buttons to later.
Intelligently temperature of "220V Cooling Fan"
Intelligent temperature fan FS4015DR, has LCD display and AS 5 片 fan "8" full-dimensional air swing function; microcomputer intelligent temperature sensing system that automatically adjust air volume according to ambient temperature. Although the price is three times more than other fan, but still sought after by consumers.