What is a Low Bay Fixture?
There are three main distinguishing features of a low bay fixture. A fixture is classified as “low bay” when the bottom of the unit is 12 feet to 20 feet from the ground. Next, low bay can be identified by a prismatic lens located on the bottom of the fixture. The purpose of the lens is two-fold: it serves as a shield to reduce the brightness of the light and also spreads the light evenly to achieve a smooth, even distribution. Lastly, low bay fixtures typically exhibit smoother candlepower curves with wider spacing criteria, a ratio indicating the maximum recommended spacing allowed to maintain uniform illumination. This ratio is interpreted as the maximum distance in mounting heights that you can space your fixtures apart. In this case, the fixture mounting height is actually defined as the distance between the bottom of your luminaire and the top of your work plane height (the height of the surface at which you will ultimately measure or require your designed light levels). Typicall
