*16 inch metal fan,1100 RPM max
*DC 12V；
*14inch aluminium fan blade ；
*brushless dc motor ； *USB output ；
*Speed: Steppless
*Working time 3.5-20hours
*10W Solar panel included
*with charging and battery capacity indicator
*15600mAh lithium battery
*Packing:1pcs/carton:48.5*26*46cm