... They simply use an internal or external water source to provide cooling.Compare with other cooling or ventilatin devices TypeEvaporative ... year(10hrs, 365days)32,120kwh394,200kwh82.125kwh22.721kwhCost with reference to refrigerative air con8.15%100%20.83%5.76%Details ... on, UV-resist cabinet material, Temperature tolerance from -42 to 96, 100% new material3) MotorHigh quality sealed aluminum motor. ...