OldManRiver
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what this thread seems to be about is the actual comparison. The lack of proof to validate the extra money involved for " better panels ".
That is indeed the point. The reviews on Amazon for some of these lights are overwhelmingly positive. There are some, but few, reviews complaining about reliability. The lights I got have a three year warranty, and customer comments are positive about customer service. I'll put up with the chinglish product details to take the risk.
What I have taken away from my research is that COB's are indeed better than panels, at a significantly increased cost. It seems that for PPFD/$, its about a wash. I see no evidence that spendy panels are better than the panel I got, after correction for wall power. I have developed a lust for this: , but it's like lusting after a ferrari; sexy, but not practical
I have experience with this cheap panel, only for veg. For veg, the 300 watt panel was perfectly adequate. I will look forward to seeing how the bigger one does.