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

LED lights are swiftly becoming the standard lighting technology in numerous applications and have become the sole option in numerous regions as incandescent and CFL lighting options are phased out.
LEDs are undoubtedly energy-efficient and have a significantly longer lifespan, making them a more environmentally friendly choice. However, there is a lack of attention paid to the human and consumer aspects of the situation, particularly in terms of the safety and health implications of the emitted light.
The electrical and toxicity concerns of LEDs are generally comparable to or superior to those of incandescent and fluorescent lanterns. It is always a wise idea to practice fundamental electrical safety, and the majority of governmental authorities have continued to adapt existing building and safety codes to prevent fire and electric shock risks.
Nevertheless, there is a dearth of regulations and comprehension regarding the safety and quality of the light that LED bulbs emit. This article examines the health implications of the light emitted from LED lights, with a particular emphasis on the "blue light" component of the LED spectrum, as well as the prevalent flickering effect of LED lights.

LED lights pose a risk of exposure to blue light.

LED bulbs do not emanate any ultraviolet light; however, in recent years, "blue light" has been one of the most frequently discussed dangers and risks associated with LED lights and display screens that utilize LED backlights (e.g., smartphones, tablets, and televisions).
The production of melanopsin, a hormone in our eyes that enhances vigilance, is known to be stimulated by blue light. Melanopsin is believed to assist in the regulation of our circadian rhythms as the day begins and exposure to natural daylight increases due to the abundance of blue light in natural daylight.
The concern is that excessive use during the evening hours will cause our bodies to continue the production of melanopsin, making it harder to fall asleep naturally. In fact, LED lights and our devices do contain a significant amount of blue light (with essential caveats and qualifications - see below).
In the evening, our bodies anticipate a decrease in blue light exposure; however, by continuing to employ LED devices that are high in blue light, we are disrupting the body's natural biological clock.
Is the blue light emitted by LED light bulbs a health hazard? Certainly, but the severity of the risk will be influenced by a variety of factors:
The intensity of the LED light - sitting in close proximity to a light bulb will result in a significantly greater exposure to blue light than seated at a greater distance.
The extent of melanopsin production is directly proportional to the duration of exposure to the blue light generated by the LED light.
The exact time of night during which the LED lights are used - exposure during the early evening hours will be significantly lower than exposure late at night just before retiring to bed
The relative quantity of blue light in a light's spectrum can be influenced by the type of LED light, color temperature, CRI, and light spectrum. For additional details, consult the M/P ratio.
The initial three factors are self-evident, and they are simple measures that can be implemented to mitigate your exposure to blue light. When selecting the appropriate LED bulb for evening use, it may be beneficial to seek out a light bulb that is specifically engineered with circadian health in mind.
In general, it is advisable to seek out lamps that emit a greater amount of red energy and a lesser amount of blue energy in their respective light spectra. Light emitted by candles and flames is abundant in red energy (long wavelength), a type of "light" that our bodies are already accustomed to absorbing at night and does not affect circadian rhythms.
 

The subsequent variables may warrant your attention:

Select a bulb with a color temperature of 2700K or lower, with a preference for 2400K. The bulbs are typically identified as "warm white," but it may be advantageous to verify the precise color temperature. LED lights that are designated "bright white," "neutral white," "cool white," or "daylight white" and/or have a color temperature exceeding 3000K should be avoided, as they generally exhibit a crisp, stark white appearance. The spectrum of LEDs with this light color contains a substantial quantity of blue light.
Select a bulb that has a high CRI. A higher CRI indicates that there is less blue light and more red light, assuming all other factors are equal. For instance, a higher CRI LED bulb will emit more red energy and less blue energy, even for the same 2700K light color.
If a manufacturer offers it, seek out the M/P ratio, which indicates the proportion of blue light in a light's spectrum. To reduce exposure to blue light, it is recommended to utilize lamps with an M/P ratio of 0.4 or lower.
Is the blue light emitted by LED lanterns detrimental to one's health and does it pose a safety hazard? Indeed, they do; however, the risks and concerns are specific to the overexposure to blue light during the evening hours and can be effectively managed and controlled. Blue light is comparable to caffeine, and it is prudent to implement comparable precautionary measures. For instance, it would be unwise to consume a double-shot espresso an hour prior to retiring for the evening.