Then there is the possibility that the light are not genuine. Today world is full of copies . If you are a whole seller of anything ,you can make a deal with a chinese factory to make a copy of it. And sell it with maximum profit with the clients buying from a distributor shop would have no clue that the product is not genuine not even the distributor shop owner would necessary know.
What made me think first of all the lights came in cheap cardboard boxes with no labels on. !!!
I measured lights on 30% , I have 4 of them all give from same distance quite different readings. Some gives 310 some gives 470..
Some light of one wing 280 and on the same light opposite wing gives 530 !!!
So I would need to buy a proper meter which could show me the wave length foot print and I could compere it to the on HLG one if it maches.
Because the behavior of the plants is so weird the stem gets purple and also the branches and become rubbery and bending down and the growing just stops there.
An other case, years ago I ordered straight from Dinafem Critical 2.0 and they came out beautiful.
Now we bought a lots of seeds from this Asian owner seed shop , the seeds where claimed to ordered from Dinafem and came in small nice 10 pack seeds with an seal on and everything.
The buds came in most of the big amount of plants out really tiny and and flimsy , all was done in exactly same way as before . None of the plants looked anywhere near as the Ciriticals 2.0 we had before.
Those boxes are easy to have made again in China and packed with crap seeds and make a huge profit when there done no comprehensive breeding work behind it...friend of mine had bought something else from the shop payd big money for some supers seeds pack of 5 , 3 of them came out as male and 2 gave really shit yield.
This round from this shop claimed to be Dinafem critical 2.0 is absolutely the shittiest quality of genetics I have ever seen.