The precedent behind grow lights is to mimic natural light as closely as possible, giving plants equivalent to the light they receive from the sun. Especially the optimal ratio and intensity of red and blue light. Grow lights can also provide plants with UV light, which increases their resistance to pests and diseases. Red light has the reaction of photosynthesis, seed germination, seedling growth and nutrition and anthocyanin synthesis. Although blue light cannot be directly absorbed by chlorophyll for photosynthesis, it can be absorbed by lutein and carotene contained in plant leaves and then transferred to Chlorophyll performs photosynthesis and is therefore one of the sources of energy that plants can absorb
For clarity, LEDs are components that can be designed to produce many different types of light, and are therefore very useful for making grow lights in addition to regular household lighting.
In simple terms, ordinary desk lamps made with LEDs are usually designed to project warm light temperatures and emit a lower percentage of blue and red light than are very valuable for plant growth.
The ratio of red, green, and blue light is important because each light is responsible for fueling different elements of the plant's growth cycle.
Blue Light - Affects the shape of plants by encouraging smaller leaves and stems, resulting in compact, dense foliage.
Green Light - penetrates the foliage to the understory, but has no effect on the physical properties of the plant.
Red light - does not affect the shape of plants, but it is the most efficient wavelength of light where photosynthesis occurs. Therefore, red light encourages plants to grow taller.
