2/23/2024 0 Comments Ez illumination![]() However, with new technology it is entirely possible to get the full spectrum and brightness of light that plants need, 2,700 to 6,500 degrees Kelvin, with white LED lights. The only reason that red and blue LED’s were used, is because white LED’s that provided the necessary spectrum and brightness did not exist yet. In the old days, growers would use red- and blue- colored LED’s to give plants this full spectrum of light that they need to grow. Plants grow best when they are exposed to light that is as similar to natural sunlight as possible, which is between 2,700 and 7,000 Kelvin. The temperatures of the colors on the electromagnetic spectrum are measured in Kelvin. When growing plants indoors, we must recreate the light produced by the sun, keeping two important factors in mind: color temperature and duration. Plants are adapted to absorb and utilize the proper amount of light in order to grow naturally outdoors. There are certain colors of light that are more important for photosynthesis than others. The four seasons have different durations of light, which can affect photosynthesis. The electromagnetic spectrum consists of both the visible spectrum, the type of light we can see, and the infrared spectrum, the type that we cannot see. The electromagnetic spectrum is the range of wavelengths or frequencies over which electromagnetic radiation extends. On the other hand, some plants, such as cauliflower and cabbage, grow well in late fall and need as little as 12 hours of light per day. Fruiting plants grow best in summer, and may need up to 18 hours of light per day to flower and produce fruit. For example, strawberries need more sunlight than lettuce to grow. ![]() Plants that produce fruit, such as tomatoes, tend to need more sunlight than those that do not. Not all plants need the same amount of light. Summer has the longest duration of sunlight, followed by spring and fall, and winter has the shortest duration of sunlight. This affects the temperature of the environment as well. ![]() The duration of light changes with the seasons. The light duration, or the amount of time the plant is exposed to the sunlight, is important as well. Oxygen is released back into the atmosphere as a by-product of photosynthesis. Water is necessary for plants to undergo photosynthesis, and plants absorb it through their roots. Chlorophyll is the green pigment in plants that makes it possible for them to create their own food, and it also gives plants their green color. Plants take in carbon dioxide from the air through openings in the leaves and convert it to sugar during photosynthesis. Photosynthesis is the process through which plants turn water and carbon dioxide into their food (sugar) in the presence of sunlight. In this article, we’ll cover why plants need light, and the best type of bulbs for plant growth. We all know that light is crucial for plant growth, but many growers don’t know what to look for when choosing light bulbs, or why their plants need a specific type of light.
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