A powerful condenser, booster fans, high-end cooling technology, and a slew of other features distinguish the refrigerator. Pel PRGD 21950 has copper heating elements to achieve 99 percent precision. Copper coils are more effective than ordinary aluminum ones. It accelerates the transition of gas coolants to liquid refrigerants. The Pel PRGD 21950 features LUMI technology. To preserve the vegetables fresh, light bulbs are introduced. The LEDs are important to maintain the vegetables fresh by keeping them from drying.