Design Lumens

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Design Lumens Lumen value at 40% or rated average life.

In lighting design there are two distinct kinds of lumen output produced by lamps. The first is called photopic or design lumens, which represent the relative sensitivity of the eye under intense lighting such as full outdoor sun. Photopic lumen output is the amount of light registered by the cones in the human eye and is measured by standard lumen and footcandle meters.

[edit] Also See

[edit] Reference

  • Full Spectrum Solutions Color Rendering Index [1]

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