............this good bro??
@arty zan
As the manufacturers they should know what works.
One way to know if you have an over abundance of light is the teeth (serations) on the leaves start to point up so they look like a a row of crocodile teeth or dragons teeth.
An over abundance of light leading to crocodile teeth,low humidity can also add to this.
An over abundance of light shouldn't be confused with heat stress where something called "Taco'ing" happens and the leaf folds down it center as called "canoeing".
These leaves are totally folded up from heat stress.
Light burn under LED time to move that light up! Top leaves start to yellow but it shouldn't be confused with Nitrogen Def.
I had some Light stress recently, I have build a 300W COB LED with 90 Degree Lenses and I'm driving them fairly hard (@ 2100mA) giving me 75W per COB.
I put them down to 24" and it was too much for the planys to handle and I got a little light scorch so back up they went.
Building your own lights meands you don't have a company to refer back to so it is just a learning experience by trial and error but it makes it more interesting and I am learn from it to add to my previous grow knowledge!
Swings and round a bouts, sometimes learning from the mistakes we make is the best teacher as long as you ask questions of how and why something happened.