Blomberg 30" Counter Depth French Door Refrigerator in Stainless Steel, ENERGY STAR® Certified, DuoCycle Frost Free Cooling, Sabbath Mode. Blomberg Blue Light Technology represents a breakthrough in keeping fruits and vegetables fresh and juicy long after they’re picked. Continuous blue light rays illuminate the crisper and allow the natural process of photosynthesis to continue, prolonging storage life and preserving natural flavors, colors, textures, and nutrients.