- Energy-saving replacement for conventional incandescent bulbs in refrigerators ,- With a total length of 60 mm, this bulb fits into virtually any refrigerator or freezer ,- Also ideal for freezer cabinets, bottle coolers, sewing machines, guide lights and night lights in which only small bulbs can be used ,- Operating temperature: -20°C to +40°C , ,Note for Consumers: ,Due to their technical properties, these special bulbs are not suitable for household room illumination.