THE LOWEST ENERGY COOLER IN THE WORLD! NOW EVAPORATIVE COOLING FOR YOUR CAR, TRUCK, OR RV, for a fraction of the cost of refrigeration! Low energy, just 2.5 amps at 12 volts for the TRI-COOL! Uses CelDektm, which is the most efficient evaporative cooling media on the planet! KAR KOOLtm will cool hot dry air as much as 35 DEGREES!