Today, LED lighting is among the most popular lighting systems and is well-known for its energy efficiency. A lot has been said about LED lighting and its sustainability, but there are still some people perplexed by the question of its effect on people.
To understand whether LED white light is good for our health, we first need to look into white light and the way in which it works.
White light and how it works
First, it’s important to know that LEDs (light-emitting diodes) are semiconductors set within a casing of different materials, working on electricity. Highly energy efficient, they nowadays emit light of above 100lm/W with no infrared radiation.
For it to work properly, you need LED drivers that convert the electricity to the appropriate DC voltage, as well as a constant currency supply.
Depending on the material of an LED, its light can vary from red, yellow and orange to blue and green. To produce a distinct white light, the LED lighting system employs either blue or UV light with phosphor coating or multiple coloured LEDs that blend into white as a result.
The quality of white LED lighting
Compared to standard light sources, LED lighting offers a much narrower range of wavelengths, but this doesn’t impair its luminosity. This merely means that its light is monochromatic. These waves of the visible part of the spectrum combine into what our eyes perceive as white light.
In terms of CRI (colour rendering index), modern LED lighting scores above 90 on a scale of 100 for its ability to reveal the colours of any given object under the light.
With saturated colours and high lumen, white light provides good optical control of its cool light. As domestic lighting, it lasts for a long time and it gives a hint of its approaching failure by emitting weaker light towards its end, rather than suddenly bursting or snapping.
Health effects of LED white light
The main reason why LED lighting still has a somewhat negative reputation when it comes to its health effects comes from the red LED light.
Older versions of LED lighting systems used the red lighting that operated with AGA (aluminium gallium arsenide), a substance considered to be toxic. If a person gets exposed to it, studies showed that a variety of medical problems can occur in the body.
However, for such effects, you would need to be directly exposed to the substance in highly concentrated amounts. The only way this could happen is if the red light bulb is broken and a person spends a lot of time under it.
This problem, as well as a potentially hazardous effect of lead (also found in red light LEDs), does not occur with white light LEDs. These substances are missing from both the diode and covering of white light LEDs that are currently in use, so there is no danger from such negative effects.
Moreover, white light from modern LED lighting systems doesn’t emit IR or UV, so your skin is well protected from such harmful radiation. There is also none of the mercury that was previously used for different lighting systems, another potentially harmful substance.
Kind to the eye
The only potential harm that can come from LED white light concerns your sight. Direct and close exposure to this light might harm your eyes.
The good news is that standard domestic lighting, as well as commercial lighting, cannot have such an effect on your eyes, being physically far away from the eye and weak enough to have any negative influence on your sight.
If anything, it is kind to the eye, providing great visibility that puts less strain on your eyes. Also, thanks to modern LED controllers, you can dim the light and directly control its force depending on your needs and preferences.
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Merkko LED Lighting stocks a wide selection of LED lighting accessories. Call us today for advice on how to replace all your classic lighting with white light LEDs of the highest quality. Start saving money and energy while enjoying good lighting in your home.