LED lights have replaced incandescent, CFL, and halogen lights in most applications, and they are the most used lighting technology worldwide.
Along with the expansion of LEDs, the common question that arises is whether these lights are good for humans or not. In this article, we will answer this question and help you understand how safe LED lights are and if they can cause any harm.
Part 1. Are LED Lights Bad for You?
No, LED lights are not bad for humans. They are safe for daily and continuous residential and commercial usage of any scale.
Firstly, LED lights are highly efficient. They emit minimal heat, so they are much safer compared to other lighting technologies.
Secondly, you have the option to choose the right LED temperature (color) for workspaces, bedrooms, kitchens, etc. Modern smart LED lights even allow you to adjust the color and brightness, so you create the perfect ambiance according to the application and also mimic the natural progression of the sun for a better sleep cycle.
Select LED lights from a reputable brand to ensure flicker-free performance and use the right LED color to prevent disruption of circadian rhythm.
Part 2. Are LED Lights Safe According to Experts?
Research on the effects and mechanisms of action of LEDs on the human retina and internal clock states that, “There is so far no evidence that LED lighting is deleterious to human retina under normal use.”
It also states that, “However, strong and blue-rich luminance makes LEDs potentially harmful to humans. Two types of biological effects on humans are known: potential retinal toxicity and biological clock disruption.”
Another study concludes, “The clear conclusion is that LEDs, whether visible or IR, are more like lamps in terms of spectral bandwidth emission profile and radiance and are not like lasers; they are safe under reasonably foreseeable usage conditions when compared to ELs for acute exposure.”
Further, it states that. “The only demonstrated adverse health effects from LEDs thus far are those associated with temporal light modulation, which includes flicker, stroboscopic risks, and those effects possibly arising from inappropriately installed lighting systems that cause glare.”
That said, LED lights do not harm the human retina in any way when normative limits are followed. There is a risk of adverse health effects due to flickering, which is why you should go with high-quality flicker-free LED lights.
Secondly, LED lights only disturb the circadian rhythm if you use the wrong light color. For instance, bright white is fine in the morning, but you can’t use it at night as it will disturb the sleep cycle. Similarly, warm-white isn’t suitable for task lighting; it’s perfect for relaxation and after dawn. Simply put, you have to select an appropriate color temperature, or a better option is to use a smart RGB LED light.
Part 3. Are LED Lights Bad for Your Eyes?
We have established through the research papers and scientific studies in the previous section that LED lights are not bad for your eyes.
At the same time, it’s also a fact that LED lights emit blue light, which could be harmful to the retina. However, the blue light exposure from consumer LEDs and electronic screens has quite low intensity. It cannot cause retinal damage or any harm to the human eye.
Cheap LED lights are likely to cause discomfort, such as eye fatigue and headache. That’s because these lights flicker at a high frequency. The flickering is unnoticeable, but your nervous system responds to it and triggers discomfort.
Moreover, LED lights are highly directional. That’s why using a diffuser is necessary. If you look at it without a shield, it will create a harsh glare, which leads to eye fatigue.
Always buy high-quality LED lights from reputable brands. And do not stare directly at bare LED lights.
Part 4. Can LED Lights Cause Headaches?
LED lights do not cause headaches if they are of the optimal quality and used the right way.
The people who complain about headaches due to LED lights are because of flickering. It’s common in cheap LED lights. You won’t notice flickering through your eyes, but your nervous system constantly registers the change in brightness. It causes headaches.
Secondly, if you look directly into the light source for a prolonged period without a diffuser or shield, the eye muscles won’t have the time to relax. But if the LED light is placed at a suitable distance, there is a diffuser on it, and you are not looking directly into it, there is no chance of a headache.
Part 5. Do LED Lights Affect Sleep?
It’s not the LED light that affects sleep, but the actual reason is the wrong color temperature.
Humans have an internal clock that is responsible for the sleep-wake schedule. It works according to the environmental light. When it’s dark, it releases the sleep hormone (melatonin). And when there is bright light in the room, there is a drop in melatonin production.
Therefore, in the evening, you should switch to dimmer or warmer lighting. It helps you sleep better. If you use bright blue light after evening, your brain is tricked into thinking it’s still daytime, which affects your natural sleep cycle.
The best way to use LEDs is to follow the natural progression of the sun. You should use bright light in the morning to boost focus and productivity. As the sun sets, you should switch to warm lighting, which signals the brain to release melatonin. You have to go according to the circadian rhythm.
You can either install both bright and warm lights in your room or dedicate specific areas for sleeping and doing tasks. A better option is to use RGB lights that allow you to change the color temperature and brightness.
Read More: What Color Helps You Sleep?
Part 6. Are LED Lights Toxic?
No, LED lights are not toxic. There is no way you can poison yourself while using these lights in your room. The light emitted is perfectly safe for humans and animals. There is zero harmful radiation, so it’s safe for your skin and eyes.
Even if the LED light breaks, there is almost no risk of toxicity. The reason is that it does not contain glass, mercury fumes, and other toxic elements that could harm the handler. Even the components inside are safe to touch.
However, it should be recycled properly. You cannot throw it with kitchen waste. It contains a minimal amount of lead, copper, nickel, arsenic, and some other metals that need to be recycled properly to prevent leaching into soil and groundwater.
Part 7. LED Lights vs. Traditional Lights: Which Is Safer?
LED lights are highly efficient compared to incandescent, CFL, and halogen lights. But the question is: are they safer?
Yes, LED lights are also safer than other lighting technologies in different aspects. Firstly, they produce minimal heat, so the fire hazard is extremely low. In contrast, incandescent and halogen lights waste most of their energy in heat and have a very high fire risk. And CFLs have a moderate or low fire risk.
When it comes to toxicity, LEDs, incandescent, and halogen lights are much safer. They do not contain toxic vapors and elements. But CFL lights contain traces of liquid mercury, which requires proper handling.
In terms of UV exposure, LED lights emit zero radiation. But there is a low-to-moderate risk while using halogen and CFL lights. They emit a minor amount of ultraviolet radiation.
| LED | CFL | Halogen | Incandescent | |
| Efficiency | Very High | Moderate | Low | Very Low |
| Fire Risk | Very Low | Moderate | High | High |
| Burn Risk | Very Low | Moderate | High | High |
| Toxicity | No | Yes (Mercury vapors) | No | No |
| Sleep Disruption | No, if you use the right light color | Minimal | Minimal | Moderate |
| Flickering | No flickering in high-quality LEDs | Moderate | None | None |
Part 8. How to Choose Safe LED Lights
Always buy from reputable and renowned brands. They offer high-quality LED lights that are made according to safety standards. These lights do not harm your retina, skin, or anything else in any way. Do not go with cheap and unbranded LED lights.
While buying LED lights, look for safety certifications. These certifications ensure that the lights are safe for use. They consider electrical safety, fire safety, and compliance with other safety standards. You can look for different certifications, such as UL, ETL, and CE.
Color Rendering Index (CRI) is a measure of how accurately the light reveals colors of the objects compared to natural sunlight. It’s a value between 0 and 100, and a high CRI indicates the light offers true colors and reduces visual contrast and eye fatigue. Low CRI near 80 forces your eyes to work harder and puts strain on your eyes. Therefore, choose LEDs with 90+ CRI.
Check the lumens value to get an idea of the brightness of the light. For a living room/bedroom, you need 1,500-3,000 lumens in total. For a kitchen/dining room, 3,000-6,000 total lumens are suitable. Depending on the light fixtures you have in the room, you can divide the lumens of each LED light.
Ensure that the LED light contains a flicker-free driver. It is necessary to prevent eye fatigue and headaches.
Part 9. Our Safe LED Smart Light Recommendations
Govee offers a wide range of smart LED lights. Whether you need light bulbs, ceiling lights, floor lamps, table lamps, strip lights, TV backlights, etc., you can find everything.
These smart lights allow you to change the color temperature, brightness, and effect to set the desired ambiance. You can use these lights for almost any purpose as they offer 16 million DIY colors and exceptional features. While the high CRI ensures true color of objects and reduces eye strain.
You can group multiple LED lights, synchronize them with music, and enjoy immersive lighting effects. You can automate these lights and customize the color and brightness according to your daily routine. They help you adjust the light according to the circadian rhythm so that you can focus on your tasks during the day and enjoy peaceful sleep at night.
The smart control of the lights makes everything effortless. Control them through the app or voice control. Govee’s LED lights are perfect as they are smart, energy efficient, and versatile.
Part 10. Common Myths About LED Lights
Myth 1: Permanent Eye Damage or Vision Loss
Some people think that LEDs can cause eye damage or vision loss. In fact, LEDs are safe for your eyes. There is no way they can damage your eyes or affect vision. They do emit blue light, but it is not enough to harm your retina or cause physical damage.
Myth 2: Chemical Toxicity in the Home
This confusion arises because CFLs contain a small amount of toxic mercury gas, which can’t be inhaled. It can cause chemical toxicity in the home.
However, LED lights do not contain any toxic element, such as liquid mercury. They are not toxic, and even if they break, you don’t have to worry about it. There are no dangerous vapors in them. You can safely dispose of them just like e-waste.
Myth 3: LEDs Emit Dangerous Radiation
LED lights do not emit dangerous UV radiation that can cause any harm to humans or animals. There is no UV radiation emitted from standard LED lights. They operate in the visible spectrum and do not harm your eyes or skin.
FAQs about LED Light Safety
Are LED lights bad for your brain?
No, LED lights are not bad for your brain. They do not cause brain damage or neurological issues. However, cheap LED lights flicker at a very fast rate, which could lead to headaches, neurological strain, and migraines.
Are LED lights bad for your health?
LED lights are not bad for your health. Make sure to use flicker-free LED lights and avoid blue or bright white light at night. You can use bright white in the morning and switch to warm white as the sun sets. It prevents sleep and hormonal disruption.
Are LED lights safe for dogs?
Yes, LED lights are safe for dogs. They do not emit any harmful radiation that can harm a dog’s eyes or skin. There is no health hazard associated with using LED lights around dogs.
Can LED lights cause a fire?
LED lights are highly efficient, which is why they emit minimal heat. They are much safer than other lighting technologies, and there is a very low risk of fire due to heat.
Conclusion
LED lights are completely safe for humans and animals. They do not emit any harmful radiation or cause skin, eyes, or neurological issues. However, users need to understand which light color they should use according to the time of day to follow the circadian rhythm. Secondly, they should only buy high-quality LED lights from reputable brands. Check out Govee LED lights and enjoy millions of colors and smart features along with energy-saving.
