Why LED grow lights need to be placed close to the plants to be effective?

Light emitting diode (LED) light is an effective light source of greenhouse and indoor cultivation. Now led grow light is a common lighting method for gardeners. More and more growers are using grow lights, especially LED grow lights. They are very energy efficient, emitting very little heat, emitting red and blue light, and usually have much longer life than other types of lamps. But one of the most common problems with the use of LED grow lights is how far away they are from plants.

Generally speaking, the LED plants grow lamp should be 12-30 inches from the top of the plant. As the plants grow, you will adjust the light to keep a consistent distance from the plants. However, the distance varies depending on the wattage of the light, the type of plant, and the amount of ambient light.

Different plants need different light intensity. For example, green plants and vegetables do not need high-intensity light, but cannabis plants need high-intensity light to grow better. In addition, the power of LED plant light is also a factor affecting plants. The greater the power, the greater the light intensity.

In addition, compared with other types of lamps, LED grow light produce much less heat, so plants can tolerate LED grow light closer.

Of course, as the plants grow, you must change the height of the light to adapt to the height of the growing plants. Under normal circumstances, most people use simple chains or cables to adjust the height of plant grow lights. According to the height of plants, lamps can be raised or lowered.