The full spectrum is only the spectrum similar to sunlight, including infrared, ultraviolet, and visible light spectrum. The full-spectrum visible light has a composition color similar to sunlight, and the color rendering index is close to 100. In the artificial light source, the high-voltage arc excites the external electrons of the metal atoms to transition and emit light. The light emitted by the electronic transitions of metal mercury contains ultraviolet rays. Controlling the content of mercury can adjust the light energy of the ultraviolet rays. Different metal electronic transitions produce different wavelengths of light. Adjusting the proportion of different metals can adjust the proportion of different spectra in artificial light. Proper adjustment can make the proportion close to the solar spectrum. The full spectrum led grow light is adjusted to the sunlight by adjusting the proportion of beads inside it.
The full spectrum LED grow light sources have been developed for many years, and the continuous spectrum of visible light in various bands has been achieved, but the continuous spectrum of ultraviolet and infrared has not yet been achieved. The ultraviolet and infrared spectra produced by LED lamp beads are relatively narrow, and it is very troublesome to compose them into a continuous spectrum. In fact, the light produced by the full-spectrum LED lights on the market is still far away from the true full-spectrum light, and most of the light produced by the full spectrum LED grow light is a combination of red light and blue light.
LED grow lights are harmful to the human body.
The light source of LED plant lights is mainly composed of red light and blue light. Red light and blue light are the most effective for promoting plant growth and development, and the blue light wavelength is the best in the 450nm-470nm frequency band.
The wavelength of blue light is between 400nm-480nm, which is a high-energy light. Blue light exists in large quantities in computer monitors, fluorescent lamps, and mobile phone color display devices. Long-term acceptance of blue light by glasses is not good for the health of the eyes and will increase the toxin content of the glasses.
LED blue light harmful to human body?
1.Blue light will aggravate the disease in the macular area of the retina.
With age, the lipofuscin (cell fragments) left by the phagocytosis of retinal pigment epithelial cells will gradually accumulate in the retinal pigment epithelial cell layer, which will cause the eyes more sensitive to chronic light exposure.
2. Blue light is not good for patients undergoing cataract surgery.
After cataract surgery, the eyes of patients who have undergone cataract surgery have lost some shelter substances. The blue light will directly enter the retina, directly losing cells in the eyes and harming eye health. Blue light fatigues the eyes. After the blue light enters the eye, the focus is not on the retina, but between the lens and the retina, which blurs the objects that the eye sees. In order for the eye to see more clearly, the eye muscles will flatten the lens and make the eye muscles tight, and end up with tired eyes.
3. Blue light makes people dizzy.
Blue waves contain higher energy. High-energy light has a high-energy yet unstable content, and has a high probability of scattering. Therefore, many photons of blue light entering the eyes are disorderly and look dazzling, making people feel dizzy.
4. Blue light is not conducive to sleep.
Melatonin is an important trace element that promotes human sleep. Blue light inhibits the secretion of melatonin in the human body, making people in a state of excitement when they need sleep, making people unable to fall asleep, due to their shallow sleeping quality and disruptive growth clock. Many organs of the human body cannot be effectively rested, which is harmful to the body’s immune system, kidney function, and continued function, and will increase the risk of various diseases in the body.
1.The LED purple light will damage the cornea and cause electro-optic ophthalmia.
Use the ultraviolet light carefully, and if the human eyes and skin are exposed to the ultraviolet light for more than 3 minutes.
When performing ultraviolet disinfection in public places, the energy carried is relatively large. In this short-wave ultraviolet lamp, consumers can choose a variety of safe disinfection and sterilization methods, and in the absence of protective measures, shall not to be used for lighting, and may cause skin cancer.
In response to the above-mentioned problems in the UV light market and consumer misunderstandings, eye injuries and severe skin burns are caused, unless professional protection capabilities and operating levels are available: 1, 3, shortwave. But also because of this, don’t be superstitious about the universal disinfection effect of short-wave ultraviolet lamps, medium-wave ultraviolet rays with a wavelength of 320~280nm, referred to as UVB, as well as the long-wave ultraviolet light with a wavelength of 380~320nm, referred to as UVA.
2. The sterilization function of the ultraviolet lamp will be affected by many factors;
LED ultraviolet disinfection lamps can cause direct damage to the human body. Short-wave ultraviolet light with a wavelength shorter than 280nm is referred to as UVC, and establishes a safety awareness. Long-term exposure can damage the eyes and skin.
UV disinfection lamps are currently on the market, if they are irradiated directly for 15 minutes, it is necessary to prevent the elderly and children from entering the UV lamp work area by mistake. Ordinary consumers should not use UV lamps for household purposes and must not be directly exposed. It will be absorbed by plastic and ordinary glass. Operators must wear protective equipment when it is necessary to use ultraviolet lamps for disinfection. Most of them use the 254nm short-wave ultraviolet (UVC) emitted by mercury lamps to achieve disinfection and distance.
In view of short-wave ultraviolet radiation may affect health; at the same time, avoid skin contact with ultraviolet radiation. This kind of UVC ultraviolet ray has a short wavelength and should be avoided by unrelated persons. It is more harmful to the human body, and it exceeds the relevant standard limit. For example, use multifunctional protective glasses to protect the eyes to avoid sudden and severe pain, tearing, or blepharospasm.
1. The high light intensity of the LED light will sting the eyes.
Staring at the LED light with a relatively large light in between will damage the eyes to a certain extent. It is good to be used as a lamp, but the light intensity is high and it is not suitable to directly illuminate the eyes.
2. The color rendering of LED lights is better than traditional lights.
It is good and beneficial to be used as lighting fixtures. It also saves energy. long life. It is harmful when used to illuminate the eyes. When buying, it is recommended to buy the kind of lampshade with polished yarn.
Assuming that the lighting source used only emits three spectral lines that are most sensitive to the human eye, the emission spectrum of fluorescent lamps and full spectrum LED grow light all have a peak linear spectrum on the basis of a continuous spectrum. High-quality lighting sources need to protect human eyesight. Full-spectrum sunlight is more beneficial to human vision than incandescent lamps. Our ideal full-spectrum light source still needs a continuous background spectrum. But for the continuous spectrum of the full-spectrum light source, the spectrum of some frequency bands is harmful to the human body. If in order to protect the color rendering of the light, the harmful light is hidden in the full-spectrum light and the eyes cannot be detected. If the design of the LED light pays more attention to health rather than maintaining the color rendering of the light source, the harmful light in the light source, such as blue light, should be eliminated, and such a light source is a healthy light source.
Although the full spectrum of sunlight and incandescent lamps are very high and red, the spectrum emitted by fluorescent lamps and full spectrum LED grow light is based on a continuous spectrum and has a peak linear spectrum: full spectrum LED grow light and fluorescent lamps have a higher spectrum than sunlight and incandescent lamps. Human eyesight is most beneficial to the full spectrum LED grow light, rather than the full spectrum of sunlight, green and incandescent lamps.
The purpose of artificial light source creation is to improve people’s lives. Full spectrum LED grow light can simulate sunlight very well, with high color rendering, and objects will look more real under the illumination of full-spectrum lights. However, we should also notice that the full-spectrum light contains some colored lights that are harmful to the human body, so the use of the full-spectrum lamp is different on different occasions. When planting indoors, the full-spectrum LED plant light should be as similar to sunlight as possible, and the light color should be full. Although some colors are harmful to the human body, we don’t need to stay there for a long time. For household full-spectrum LED lights, we have to eliminate blue light and other harmful colors. Reasonably use the advantages of LED lights, design different LED lights used on different occasions, and make the best use of LED lights. MOKOLight full spectrum LED grow lights are specially designed for indoor planting, helping growers to grow satisfactory products. Contact us today!