Are you aware of just how effective your grow light is? If you are growing indoors, you need to understand how to measure your light with a PAR meter. Light is one of the most prominent factors in how your plants grow, and so it is important to constantly be testing your light output.
There are other ways to measure light, such as lumens and lux meters, but these won’t give you the same useful information, and have sort of become outdated.
We're going to tell you everything you need to know about measuring your grow light, including how to actually use a PAR meter, and some limitations these may have. Then, we will give you some tips on how to increase your lights effectiveness. First, let’s cover why lumens and lux don’t cut it these days.