Haier Thermocool?s energy efficient freezer with superior inverter technology enables saving of up to 50% energy and money and the large storage capacity enables you do bulk purchase without worries about wastage.100 Hours Frost Retention: Built with thick insulation with high-pressure micro foaming that keeps food frozen up to 100 hours after a power outage.Up To 50% Energy Saving: Power-saving technology making the product more energy-saving by cutting energy consumption by half versus any regular freezer.High Efficiency Compressor: Fixed speed and wide voltage operation compressor the delivers voltage ranging from 160V to 260V.