4G Mega Cooler is designed for large industrial units to make workplace a comfortable place for the employees. It is mostly used in automobile service centres, manufacturing and production units where large amount of heat is produced. It is usually installed on the rooftops and are connected to the particular areas with the help of a steel duct. 4G Mega Cooler requires an electrical voltage of a standard value of 220 volts. This system is highly effective or economical which helps to reduce the electricity bills.