SunFrost DC Refrigerators Voltage: All models are available in 12 or 24 VDC. Colors: A wide variety of custom laminates and wood veneers are available. Standard laminate color is white. Base Cabinets: Custom built, made to match with two side by side drawers. Available in 13" and 24" heights or 4" stand. Constructed of solid plywood. Clearance: The refrigerator and freezer doors are mounted on a continuous stainless steel piano hinge. It is important to allow an additional 3.75" width on the hinge side for the door to open. All units require minimum 6" clearance above the unit to allow for heat clearance. Features: storage conditions, defrost system, reliability