The heating lamp in the greenhouse has no effect. The heating range of greenhouse heating lamps is too concentrated, and the heating effect in other places is poor and uneven, which is not conducive to the growth of crops in greenhouse. In addition to increasing the light for crops, it can also reduce the humidity in the greenhouse. Greenhouse fill light lamp, also known as plant fill light lamp, completely follows the growth law of crops and is based on the basic principle that crops use sunlight for photosynthesis.