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Section 30 Objective 1 Crossword

Across
A numerical value that will give you an idea of what color of light a lamp will produce. Developed with the Kelvin temperature scale.
The measurement of the quantity of light.
Measurement of how effective a light is at illuminating.
Down
The measurement of light source brightness. The amount of light from one standard candle. 
Measurement of illumination.
Visible energy from electromagnetic radiation.
A value that indicates how well a light source reproduces the actual color of an object.