... .5-3.5W LED 3,Motor: single Motor and double Motor, single motor have outer rotor, inner rotor and shaded pole; double motor is shaded pole. 4 ... ,Air outlet: φ120mm and φ150mm. 7,Switch: Kinds of switch optional: touching swtich, touching LCD switch, touch sensot swith, DIP switch, keyboard switch and remote swith. 8 ...