Plants grow better in sunlight than in artificial light although both sunlight and artificial light provide the energy required for plants to grow. Plants need energy in the form of photons to grow, and there is much more energy emitted by the sun than artificial light.
Not only does artificial light produce less energy than sunlight, the characteristics of the light are also different. The light emitted by the sun contains energy from a vast region of the light spectrum, while artificial light emits very little energy from the red and blue regions. When it comes to most plants, more energy leads to more growth.