The Canadian Center for Occupation Safety and Health reports that:
"Even very low concentrations of ozone can be harmful to the upper respiratory tract and the lungs. The severity of injury depends on both by the concentration of ozone and the duration of exposure. Severe and permanent lung injury or death could result from even a very short-term exposure to relatively low concentrations."
SisterMaryElephant wrote:I warned everyone that I may split off the debate since it was going off-topic and becoming purely academic...
I doubt we'll see many higher powered passively cooled LED lights, I believe the trend will be air-cooling (with separate intake/exhaust (like HID hoods)) or water cooling.
True. 1w diodes *are* more efficient and as the power goes up they lose even more efficiency but they gain penetration power. I believe that the desire for larger plants will win against the desire for efficiency because the tiny difference in cost to power 1w vs 3w vs 5w vs "future diodes" pales in comparison to what is gained in terms of yield. It doesn't take many more grams of yield to pay for the lost efficiency.
Once again, every growing decision made has pros and cons.
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