The above Ad will no longer appear after you Sign Up for Free!


The measurements of a luminaire's light output, usually involving only the visible portion of the spectral energy distribution.

This page has been seen 1,039 times.

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice