Benjamin Murphy——Works at the International Energy Agency, Lives in Paris, France.
For example, for a starker and clearer light, which is better on the eyes for studying, a bulb in the brighter (cooler) white to natural daylight range of 4000K (degrees Kelvin) to 6500K is optimal.read more >>
QuesHub is a place where questions meet answers, it is more authentic than Quora, but you still need to discern the answers provided by the respondents.