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I totally agree. Pretty useless in the growroom haha!

Not arguing practicality. Just commenting on your incorrect statement. Light follows the laws of physics we adhere to (aside from extreme gravity/quantum mechanics). This topic has also been covered in other threads a few times, which would be a more appropriate place for this conversation...

Nope. Sorry. That is incorrect. Please do more research before stating claims as fact. Just google if the inverse square law applies to lasers....

Are these going to be rated at 80 CRI or 90 CRI? @Stephenj37826

Any news on boards coming into stock? @robincnn

Oh gotcha. Sorry I thought you were referring to Meanwell. Yeah I don't know about that other company..

Since 1982. They started out making power supplies for computers. http://www.meanwellusa.com/aboutEvents.aspx?c=9 I feel real comfortable about using Meanwell drivers.

https://www.rollitup.org/t/lens-and-reflector-optics-for-cob.893660/ This thread should have you covered.

Some dried and trimmed Pugsbreath "The Guice" Harvest Day 75 Different Pheno Lower Nugs Hashplant/Chem4 x Fire OG

Nice healthy girls!

Day 69 Harvest CTHA x White Rhino

Thanks a lot!! She's an icy bitch:p Still got some tweaking to do, but it's starting to come around. CTHA = Crouching Tiger Hidden Alien This cross and the Pugs Breath 2 that I'm running are some of the frostiest plants I've grown yet! I'm excited to try to get her even better

Day 68 Harvest Pugsbreath 1 Pugsbreath 2

I understand what you are saying. Light manufacturers should make their 'PAR Charts' large enough to capture all of the light until the meter reads zero. I feel that this should be done in an open area with NO reflectivity so we know just what kind of footprint is being laid down. Reflective...

Knowing the light spread of different fixtures at different distances is definitely useless information....

Some of my plants stretched 36" in 11 days and some of my plants haven't stretched more than 12" the whole flower cycle. These plants are literally side by side. This was with 3500K COBs.

Quick Update Day 60 Some CTHA x White Rhino lowers Next update will be at harvest:weed:

I guess we have different ideas of what 0 means. I won't try to convince you, maybe just read the article cited? They do a much better job at explaining than I could.

I've read a few studies that have found light wavelengths of >780nm will elicit photosynthesis and stimulate photosystems 1 & 2, with most activity dropping off sharply <740nm. http://www.sciencedirect.com/science/article/pii/S0005272805001192

Your posts clearly support that... Thanks for all your baseless contributions. The pic you posted shows so clearly how much better DE is than LED. We are all a bunch of ass hats for even trying different tech:dunce: and especially for liking the results. Sorry HID master grower...