Tag Archive: Luminance

Understanding the difference between Luminance and Illuminance

June 17, 2017 8:41 am

With the numerous advances in lighting technology, it can sometimes be tough to determine the right light source unless the basics of light are understood. The brightness of a lighting fixture is determined by the number of lumens produced. Technically, a lumen is a standard unit that measures the total amount of visible light emitted by a light source.  Many lighting manufacturers, purchasers, and users often evaluate fixtures brightness solely based on lumen output.  However, evaluating a LED lighting fixture on the basis of its lumen output can give users a distorted image of the fixture performance, as Lumen measures the light being emitted...