with casters, can move to anywhere you want to ,with Lead-acid battery, can orking at the case of govenment electricity is off, the total height is 142cmwith 25L water tank3 speed ,with 2x12V 15AH batterythe fan can work 4-7 hours after the govenment electricity is offwith casters,can move to anywhere you want towith 10pcs super bright LED lightswith remote control Air cooler