Is it safe to use LED lights? Are they detrimental to your health? 2

Benefits of Blue Light (It's not all evil!)

It is crucial to bear in mind that the health risks associated with blue light are highly specific to overexposure during the evening hours, despite the widespread discussion regarding its potential hazards.
Blue light is a critical component of our circadian rhythms, as it signals to our bodies that it is daytime and time to be alert during the morning and daylight hours.
The most effective method of ensuring consistent, healthful, and appropriate exposure to blue light is to maximize the use of natural daylight. For a variety of reasons, including architectural, climatic, or geographical, a significant number of us reside in areas that lack access to natural daylight.
According to preliminary research, the absence of blue light exposure can have adverse health consequences. It has been proposed that a lack of exposure to natural light, which is particularly prevalent during the winter months, is the cause of health conditions such as SAD (Seasonal Affective Disorder).
The subsequent optimal course of action is to contemplate the utilization of full-spectrum illumination for light therapy in such circumstances. 

Health Hazards of LED Flickers

LED systems, similar to early fluorescent lighting systems, are susceptible to the production of rapid flickering or stroboscopic effects. This is a substantial area of concern in the context of LED lighting and health.
Many LED bulbs generate flicker, which is characterized by a rapid transition between on and off states. The flickering is not immediately visible to humans, as it occurs at a rapid pace of 120 times per second or more, and it appears to us as a light bulb with a consistent and consistent luminosity.
Flicker is a challenging aspect of lighting to observe and quantify, as it is not immediately apparent or noticeable. However, rudimentary research indicates that it may have adverse effects on health and safety.
In other words, our bodies can subconsciously react and respond to what is essentially a very rapid strobe light, despite the fact that flickering is not immediately evident or perceptible to our eyes. Flicker has been linked to an increased risk of seizures, migraines, fatigue, and eye strain.
It is difficult to argue for any positive health benefits of flicker in the absence of significant medical or scientific research, as it is not a natural method of exposing humans to light. A consistent stream of light without any fluctuation is provided by natural daylight, candles, and even (most) incandescent bulbs. Flicker is a concern that should be avoided at all costs, particularly for populations that are susceptible to it, such as the elderly and those with specific medical conditions.

 

Methods for Determining or Measuring Flicker

Some LED bulbs exhibit a more severe flicker, which can cause objects in motion to appear to have a stroboscopic effect. For instance, the appearance of discontinuous movement may be generated by waving one's hand under an LED.
The appearance of dark bands on your phone camera is a common phenomenon that you may have noticed. Although some contemporary smartphones have begun to integrate software to mitigate this effect, this is yet another unmistakable sign that an LED bulb is shimmering.
While the most reliable method of measuring flicker is to employ specialized measurement equipment, such as an oscilloscope, a fast and effective method is available on the majority of smartphone cameras.
Record a brief video clip in slow motion by utilizing the camera program on your smartphone. The majority of smartphones, including iPhones, will be capable of recording video at a frame rate of up to 240 fps. This frame rate is sufficient to capture flickering that occurs in the 120-360 Hz range, which is also the most problematic frequency in terms of the health impacts of flicker.