I'm not sure what hurts worse, your spelling or your logic.
$1400 for 360 watts isn't pure love, it's pure stupid. I've got 800 watts with a superior by far spectrum, the same heat advantages, and it cost me less than $400. Lifespan will be just as good as any that you can hope to actually realize. Oh, I actually get coverage too.
You'll have to forgive me for not being up to speed on the cutting edge gimmickery from Kessil. Certain aspects of their first design were, in a way, more intelligent, but they ripped people off in not including the light mover and in not telling them it needed to be cooled. The newer model that you linked to will be better at first, until that little piece of shit fan gets caked up with dust and then it won't be worth shit.
That idiot you linked to can't even explain the purpose of the vapor chamber. It's to reduce "spreading resistance", and so diminish the "hot spot" by more rapidly distributing the heat over a larger area, which is still ultimately fully reliant on the fan for removal. So it's a bit of a trade off from what they had before, and it is also a total departure from prior marketing which was to offer the ultimate in robustness, as the fan is an obvious point of failure that they didn't have before, and so is the vapor chamber, that's probably produced in a chinese sweat shop, so feel that love.
It's also a bit of an admission that their big bad patent on resolving cooling issues, maybe when compared to a 5mm LED, isn't worth the paper it's printed on.
The heatsink is not "best in the _business_", it's just a heatsink. What you're talking about is the cooling solution, which is the combination of sink, vapor chamber and fan, and it is by necessity, and definition, one of compromise.
If you run out and spend that much money on this light for components of its design or implementation that you scarcely understand enough to truly appreciate, let it be known that you're burning your money on the bling of high fashion of the very best marketing can offer.
Making a video doesn't say a damn thing for the quality of their product. The engineering of it speaks volumes where their marketing is background noise, and companies that try and market their bullshit by talking about how warm and fuzzy it makes you feel to hold it in your hand need to go and fuck themselves.
Of course in the LED grow light game there are even worse cons out there than kessil. But that sad reality doesn't make kessil a stellar example of quality engineering or truth in marketing, and it sure as fuck doesn't make what they're selling worth the asking price.
Otherwise, it's great that you "feel" like you got your money's worth buying all these crap because it makes your plants dance and be hip and cool like in ipod commercials.
The fact of the matter is, I should hope that an "led growing subforum", unlike some other forums that allow advertising dollars to pollute the truth, would actually be focused on quality information on how to grow with them, make the best of them, and actually understand them, than it would be to ego stroke whatever manufacturer du jour lies best based on our "Feelings" and how well their marketing resonates with them. Otherwise I'm just insulting the religion of a bunch of goofs that can hardly put a sentence together.
