The Transcool EC3F portable evaporative air conditioning unit is light weight, compact and energy efficient. An environmentally friendly option, our 12 volt evaporative coolers can work with or without water. The Transcool EC3F portable evaporative air coolers can be used anywhere you have a 12, 24 or 100-240 volt power source-at home or on the move with a battery! The EC3F now features new twin voltage circuitry that has taken many months of in house research and development. This hi tech twin voltage circuitry now enables the Transcool portable evaporative cooler to be used with both 12 or 24 volts DC, power or 100–240 AC household voltage using the Free 100-240v transformer. The EC3F unit features a Variable Fan Speed control, giving you a full range of fan speeds between ‘OFF‘ to ‘HIGH‘ Speed -and everywhere in between! The EC3F also features ‘LOW BATTERY VOLTAGE CUTOFF’ technology reducing the risk of flat batteries! Designed and constructed in Australia using local and imported components. -Light weight, compact, and robust -Low current draw -Use with ice or water -2 year conditional warranty -European Warranty Service centres in England,France,Slovenia,Spain and The Netherlands A fantastic companion to provide you or your pets with a beautiful cool breeze while at work, rest or play. An effective portable evaporative cooling unit for use in your caravan, camper, car, tent, RV, truck sleeper bunk, boat or 4WD.