So that light you posted for $99 - in my opinion from first hand experience is they both have the same LEDs. I have tested those. That is the model light i returned and ended up buying ten of the bloomspects after seeing them at the grow store They also claimed it was "sanan" led's, that sanan themselves claim do not exist. So Sanan does make Plant diodes. But none in the size most these companies say these lights are. So just like the bloomspect, mars, spider farm, ton of other brands. they all have this random LED that they make up mostly and wont show any spec sheet on. But they seem to work as lots of growers use lights with them. So they all test pretty much the same in respect to the wattage and layout on an apogee. its not that it was bad, it was again the coverage i was able to get with 2 lights with same diodes at 250 led per panel vs 1 with 450
The vipar did have a somewhat at face value better driver. But not enough to make it that great. At full power wasnt able to match my dual qb288 (not unexpected) but it would take 2 of them to meet that as my baseline. where it would take 3 of the blooms. Just trying to give an overall comparison. So going with the better value i chose 3 vs 1 or 2 of the other options. Because for me to exceed that baseline, would mean the value goes back to the dual 288's with real samsung lm301 led's.
I will say if you end up with the
viparspectra is nothing wrong with it. They are a good company. You pay for the brand reputation and its largely a good reputation as your experience with your lights has shown. You can always just add that quantum with your blurples max out your space and coverage and you probably wouldnt see a difference except at the price tag.