Q. What's the lumens trap?
A. The lumens trap is the belief that all lumens are measured equally and therefore they should be compared like apples to apples. Unfortunately, that is not the case, and lumens generated by different light technologies are not the same. Hps Lights out of the gate are very bright but degrade quickly. Furthermore, their CRI is poor when compared to LED Lighting. The new science of scotopic lumens attempts to show that photopic lumens does not paint an entirely accurate picture. LED Lighting, with less advertised photopic lumens, put more usable lumens on the ground than their higher lumens HPS couterparts.
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