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Light measurement standards require LED lamps and luminaires to be placed in their normal burning position during measurement. Further, rotation during measurement should be minimized to keep natural cooling. Doing otherwise would certainly lead to gross errors when measuring old […]
Accuracy in light measurements
A giant international interlaboratory comparison, IC2017, including 37 light measurement laboratories in 18 countries was conducted in 2017 through 2019*. General results are not yet public, participating labs have received their own results. In […]
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