How does the Lumen output of the LED Grow-Master Grow Light compare to other grow lights?
Lumens and Lux are measurements of how bright a light source appears to the human eye. Since the human eye is most sensitive to colors plants don’t need, and least sensitive to colors plants prefer, Lumens can’t be used to accurately compare the plant growing capability of grow lights. If a grow light manufacturer rates his grow light output in Lumens he’s only telling you how bright his grow light will appear to you and light your room, not how well it will grow your plant. The most accurate unit of measurement for comparing grow lights is the microEinstein, which measures how many photons of light strike an area per second. But while this is a much better way to estimate a lamp’s plant growing ability than Lumens or Lux, it is still very difficult to directly compare two different types of grow lights. All grow lights except the SolarOasis Ruby Grow Light emit large amounts of light plants don’t use very efficiently, so including that light output in a light’s plant growing measureme