Originally Posted by beta
There are faaaar too many variables, it's is literally *impossible* for anyone to compare lights if they are not tested side by side. When you don't compare side by side it's very very very easy for you to think you "see" an effect when you want to see an effect.
If you tried to design a scientific experiment that wasn't side by side and double blinded you'd be laughed out of the lab, it's not even a consideration.
Same room, same plant, same nutes, same PPM, same PH, same amount of water, same media, same amount of media. Yeh my VPD and CO2 differs and my temp a little but everything else is the same I have been using for 8 years.
So I will stand by my 4-5 days quicker. If you dont agree that is fine. I am not going to get in a pissing match with someone who wants to.