Heating system can be turned into cooling system by exchanging the head to make your life comfortbale in hot summer. For outdoor use only. Working Requirements:230V/50Hz 110V/60Hz Cooling Effect:Misting can reduce the surroundingair as much as 20 degrees in a few seconds. Dia. 5-6m Lamp:Can be lighted at night Gross Weight:25kgs Misting Effect:Perfume is optional to added into the water to make air flesh Certifacate:CE approved/Exclusive patented