... colors can be made Solar ventilator portable solar fan solar fan for cap, it adopts energy from sunlightTYNF-1 ... can fix on the cap by the clamp of fan ,so it is very portable.Solar panel :Voltage ... When you are in the strong sunshine, the solar fan will work automatically, if the sunshine is not strong ... the built in rechargeable will supply for the fan, the fan can work about4-6 hour, when the ...
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