Before revision: "The Ergonomics of Light" by Bradford J. Powell, Buildings.com, October, 2002, retrieved November 3, 2007 Poor light can be divided into the following: Individual or socio-cultural expectations Insufficient light Poor distribution of light Improper contrast Glare Flicker Thermal heating (over or under) Acoustic noise (especially fluorescents) Color spectrum (amber street lighting) Effects of poor light The effects of poor light can include the following: low productivity high human error rates eyestrain headache a reduction in mental alertness general malaise low employee morale {| class="wikitable"|- style="height:35px"!
After revision: poopoo"The Ergonomics of Light" by Bradford J. Powell, Buildings.com, October, 2002, retrieved November 3, 2007 Poor light can be divided into the following: Individual or socio-cultural expectations Insufficient light Poor distribution of light Improper contrast Glare Flicker Thermal heating (over or under) Acoustic noise (especially fluorescents) Color spectrum (amber street lighting) Effects of poor light The effects of poor light can include the following: low productivity high human error rates eyestrain headache a reduction in mental alertness general malaise low employee morale {| class="wikitable"|- style="height:35px"!