It simulates the heat of a stone heated by the sun (in nature, stones can retain heat for several hours even after sunset). Some reptiles use this form of heat conduction for proper thermoregulation, which is essential for proper metabolism and digestion. The radiator switches off automatically when it reaches the required temperature and all heating elements are fully enclosed in the housing. This prevents burns and overheating. The stone is coated with a special resin that is waterproof, non-toxic, easy to clean and ensures even heat distribution. The stone looks very natural and can be used in wet or dry terrariums.