Many reptiles, such as lizards, turtles, and snakes, need to be exposed to sunlight, and the decomposition of vitamin D3 is used in the body to absorb calcium. Otherwise, it will die of snoring called rickets. However, during the feeding process, it is not easy to receive sunlight, and direct sunlight will cause the temperature in the cage to be too high, which will be harmful to the health of reptiles. Therefore, the best way is to use a reptile lamp for indoor sunbathing to simulate the supplement of sunlight.