Coefficient of utilization

A measure of the efficiency of a light fixture: the ratio of the luminous flux reaching a surface to the total lumen output of the fixture. This is found in the photometric test report as the percentage of total lamp lumens generated within the fixture that actually reach the work plane. It is based on the efficiency of the fixture.

coefficient of utilization, Brit.

utilization factor. The ratio of luminous flux received on the work plane to the total luminous flux emitted by the source.

单词	coefficient of utilization
释义	Coefficient of utilization Coefficient of utilization A measure of the efficiency of a light fixture: the ratio of the luminous flux reaching a surface to the total lumen output of the fixture. This is found in the photometric test report as the percentage of total lamp lumens generated within the fixture that actually reach the work plane. It is based on the efficiency of the fixture. coefficient of utilization, Brit. utilization factor. The ratio of luminous flux received on the work plane to the total luminous flux emitted by the source.
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