At present, in plant lighting, the widely used plant light is LED perpetual lamp and sodium lamp. However, for many non professional consumers, how to choose? Today we will learn about it.
Low thermal radiation, avoiding "high temperature damage" of plants
"High temperature injury", also known as "heat injury", is the physiological injury of plants caused by high temperature. This will lead to the deterioration of plant protein, the damage of biofilm structure, the disorder of metabolism in the body, and at the same time, there will be abnormal phenomena such as leaf burns, plant wilting, flower shedding and so on.
According to the law of conservation of energy, it is found that led and sodium lamp have different ability to convert electric energy into light energy and heat energy. The LED perpetual lamp, which uses the same energy as cold light source, will generate more light and less heat. While the sodium lamp of the heat source lights, while lighting, it will generate a lot of heat and less light.
Therefore, compared with the two lights, LED perpetual lamp can save energy and convert more energy into light energy, which can provide effective radiation for plants. At the same time, it can effectively avoid plant "high temperature injury" and help users reduce planting risks.
No harmful substances such as mercury, high safety and long service life
On the one hand, LED (light-emitting diode) is made of gallium, arsenic, phosphorus, nitrogen and other compounds. It does not contain heavy metals such as mercury inside, so it is very environmentally friendly and has a high safety index. The sodium lamp is generally composed of mercury, sodium, xenon arc tube wick, glass shell, degasser lamp head and other components. Once the lamp is damaged, mercury and other harmful substances are not handled in time. If people are exposed to high mercury environment for a long time, they will be poisoned, or brain injury or death will be caused. On the other hand, LED uses solid semiconductor chips as luminous materials, and has little decay. When the luminous flux is reduced to 80%, the life expectancy can reach more than 25000 hours. The perpetual lamp is used to generate arc between electrodes of the arc tube, and its life expectancy is shorter than that of LED plant growth lamps.
Rich wavelength types, good light compensation effect
As an important factor of plant growth, light plays a very important role. It is found that the spectral energy distribution of sodium lamp can be roughly divided into red orange light, yellow green light and blue violet light (a small amount). LED perpetual lamp can produce light monochromatic light with narrow light wave, such as red, green, blue, orange, etc. These monochromatic light can be mixed, for example: the LED light source with mixed wavelength can promote the growth and development of lettuce, Rolle and other seedlings and roots, shorten flowering and fruit cycle, increase sugar accumulation and starch accumulation of sugarbeet, etc. Requirements for different stages of plant growth, coloring, flowering and fruiting.
To sum up, although LED perpetual lamp has higher price than sodium lamp, it has more advantages than sodium lamp in its performance, life and effect, and is more worth buying by consumers. Because of this, more and more enterprises devote themselves to the field of plant lighting