Saturday, 15 September 2018

Why LED bulbs are bad for our eyes

LED bulbs are being recommended as it is very efficiency in producing bright light with very little energy and they are long lasting.

The three primary types of color temperature for light bulbs are:
  • Soft White (2700K – 3000K), 
  • Bright White/Cool White (3500K – 4100K), and 
  • Daylight (5000K – 6500K)
Daylight bulbs are the whitest as they are near the white/blue zone, hence they also emit the most blue light.

Effects of blue light
  • increases cataract risk
  • increases macular degeneration risk
  • risk of eye cancer
  • harder to sleep
  • makes eyes uncomfortable, watery
Note only LED bulbs emit blue light, smart device screens (mobile phones, laptops, tablets, etc) also emit blue light.


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