Ambient Light: The light surrounding an environment or object.
Direct light diffuser: A device to redirect or scatter light from a source.
Luminosity: The brightness of a light source of a certain wave length as it appears to the eye.
Energy Efficiency: The percentage of total energy input to a machiene or equiptment that is consumed in useful work not wasted as useless heat.
Watts: An international unit of measurement of power equal to one joule per second.
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