lightcs4
Loving to learn
- Location
- Upstate NY
There are tests that have been done and posted on the Internet, but I don't recall where (Google should find some). The individual reflectors allow more light to get to the tank rather than escaping in different directions. There are also PAR testers you can purchase to show actual PAR output (I'm not a lighting guy, so I don't have much in terms of details). The output of PAR and the watts are two different things. Watts per gallon is just a generic guideline to get the minimum amount of PAR.