SPENCERS DC high efficiency refrigerators and freezers have exceptionally low energy consumption requiring smaller, less expensive power systems and low operating expense. High quality construction provides excellent reliability and long life. These units provide sophisticated refrigeration power in a tough lightweight construction for easy transit. Super-insulated cabinets feature 80mm of polyurethane insulation with epoxy paint galvanized steel exterior and Stainless Steel interior. A zero maintenance, brushless, thermostatically controlled DC compressor operates on 12 Volts DC. A patented low-frost system reduces frost and moisture build-up for low maintenance. This technology allows refrigeration in remote locations were it was previously unavailable or prohibitively expensive.