There is a widespread myth that reading in poor light can lead to vision impairment. Scientists have disproved it, but they still agree that bad light causes excessive eye fatigue, headaches and even fepileptic seizures. Let’s find out what makes light harmful and how to find a safe light bulb.
Do you recall that blinking of burning out CFL bulb? It's not only annoying but can also induce malaise, headache and even epileptic seizure after just a few seconds of exposure. But as it is easily discerned, you can simply avoid it.
The real menace could be the imperceptible one. It occurs when light source has the ripple level over 20%.Our eyes cannot perceive it but we can feel its consequences like headaches and eye strain after some time of being in a badly illuminated place or in front of computer monitor. To protect yourself from flickering light you’d rather choose the light bulbs with ripple level <25%. This feature is usually marked on the package.
It was proved that short-wavelength light from the blue end of the spectrum can cause insomnia. It affects hormone melatonin secretion and deceives our brain into thinking that it’s not a time to sleep. It can be especially harmful for children as their internal biological clock is only develoring. That’s why it is crucial to use the lighting of natural tones: warm or neutral white, for example.
Initially, LED light was really intense, as its luminous flux is much higher than in other lighting technologies. Fortunately, there are some ways to adjust LEDs for everyday use. First one is to combine the diodes of different colors, which is quite expensive. But the most favorable way is to cover the diode with phosphor of specific color to achieve warm or neutral white light. Combined with special materials, like polycarbonate, it will help to create soft diffused shine.
As you can see, it's not a simple task to choose a source of light. A simple bulb can either create the atmosphere of comfort and coziness or become a reason of health problems.
We hope this article will help you to make a smart decision. Let your house be bright and safe!