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GOOD FOR THE EARTH
Improves Employee Productivity & Demeanor
Multiple studies show that humans are particularly sensitive to blue light. Blue light is the main color we see when we’re outdoors. Blue’s main effect is to suppress melatonin, the brain chemical that can make us feel sleepy.
As Scientific American noted in November, a 2011 investigation by Christian Cajochen, the head of the Center for Chronobiology at the University of Basel, found that volunteers exposed to a blue-based, LED-backlit computers for five hours in the evening “produced less melatonin, felt less tired, and performed better on tests of attention than those in front of a fluorescent-lit screen of the same size and brightness.” Researchers are thus increasingly advising office designers to include as much daylight-like blue in their offices as possible.
It’s clear that LEDs have a huge advantage over incandescent bulbs, but what about when compared to CFLs? The biggest difference is that LED lights and incandescent bulbs do not contain hazardous mercury, while CFLs do. Small amounts of mercury are released into the environment when CFLs break, or if they are improperly disposed of.