An LED grow light is made to encourage plant growth through emitting an electromagnetic spectrum that aids in the photosynthesis process. The light spectrum that is emitted is very similar to the rays of the sun, so plants that usually only survive outdoors are able to be grown indoors. Natural sunlight has a high temperature color and appears almost bluish. Through using a color rendering index, a person can compare how much their LED grow lights match the natural color of normal sunlight.
Plants have various stages of growth so different light spectra are used in each of these stages. The beginning vegetative state requires the blue light spectrum, but when the flower stage occurs usually an orange-red spectrum is used instead. Most lights are bought with a specific spectrum color that needs to be changed as the plant grows. But some companies produces grow lights that have a “full spectrum” bulb which can be used for all stages of plant growth. These bulbs can display multiple different colors and are far more expensive, but they also save you from having to buy multiple light fixtures.
These lights are usually used along with a reflector to intensify or control the emission of light. An electrical ballast is also added to control the current flow to the light, either increasing or decreasing its power. This setup is required because a high intensity light setup is necessary to produce a replica to sunlight. However, not all plants are meant to be in direct sunlight all day, so that is why the power alternator is added to control the light’s intensity. Some systems can even be made to simulate a day, with the lights brightening in the morning, at full peak mid-day, and lessening in the evening. This provides almost an exact replica of the outdoors. Try doing a search online for an LED grow lights finder to get additional information and tips about how to incorporate new grow lights into your garden.