kachiga
Well-Known Member
the variance in efficiency from gogreen, tasty, plc, amare and fluence can be quite large, potentially as high as 40% deviation. Different bins, different drivers, different currents and different cooling systems each alone can easily lead to a 10% deviation. so if I am a greedy cost cutting mfg, I can choose the lowest bin (-10%), use a cheap driver (-10%), run at a high current (-10%) and skimp on heatsinks (-10%).
I agree with that and I am sure we can find a TON on alibaba(http://www.alibaba.com/trade/search...&CatId=&SearchText=cob+grow+light&isPremium=y). But we ruled out the high current, low bins and cheap drivers. I can not comment on the heatsinks, I never went that far in depth. But you are right any one can and thats why I think it's fair to ask all of these questions no matter the company.
And these are all questions that a company should answer. I did not email every company granted, I did email a few and never got a reply back. But I was more willing to buy from some one who answered all these questions openly and never felt like something was being hidden.
https://youtube.com/watch?v=24M2Ch0w6qo
This is what testing in an integrating sphere looks like. Has any cob based light made it into one?
I posted that video a page back or so. We just talked alot about this on the last page

If any one does, I love to see/learn about how cobs did in this though.
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