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Puts added stress on the exhaust fan. Creates a bottleneck. You will still get a negative pressure inside the tent with a larger passive intake than exhaust.

The idea is you dont need an intake fan to begin with.

Someone must have skipped the beginners guide to designing a grow setup. Smaller intake than exhaust is a no-no. Also important is the ambient temperature outside the tent...

The DIY section should have some thermostat setups you could use to set something of a fail-safe up. You could make one easily for ~15-20 bucks.

Put down the bong bro, and maybe pick up a book. Cue tropic thunder GIF...

If these things existed a lot of K9s would be out of work... Last I knew there were still competing theories on how our taste and smell senses even work, let alone be able to detect them electronically.

I don't run air stones. Just a circulation pump in each 17gal site rdwc. Turbulent waterm never been an issue.

The problem I have with the first study is that, if youre running CO2 at 1000-1500 ppm, you are 2-3x higher concentration levels than natural. Even if stomata density is reduced by ~30%(varies by plant) I would think the fact youre dealing with a 100-200% increase in co2 level would result in a...

Remember that youd be buying an extra chip and heatsink with the Bs. So I doubt it will be cheaper to go that route..

I would think genetics play a bigger role in chemical composition than light profile...

This is kind of a silly statement. DIY still uses the years of R&D the other guy did... Not to mention you could DIY a copycat build of just about any of those lighting engines, right? Also, this type of topic is a breeding ground for opposing viewpoints that nitpick each other. Dont get...

I would venture to guess that HLG have a new version of the light on the horizon anyways and would probably be well suited to start a new thread on that...

Interesting fact: ~85% of online forum posters do not know there is an easy to use search function on most forums. Also, the definition of "on-topic" discussion must fall into a very narrow band for you folk, especially considering this is a "DIY" thread... Hem and haw all you want about...

Maybe they should advertise on their website instead of a public forum. LOL Seriously, this is RIU.org, not HLG.com... The cult in here is hilarious. And to address your actual post, please read the original thread title. DIY... Do It Yourself.... People always look for cheap...

Thread necromancers are the worst. This thread can be addressed in two simple points. It's a public forum. You are not a moderator. And if you want to tattle simply p.m. a mod.

Hmmm, actively cooling the LEDs will not likely lower the temps in the room at all, that would simply be a factor of your exhaust.

Also there is no need for a proof of concept. It works. Myself and others on the board have used this method.

Condensation could be an issue with your stated goals. Other than that though shouldn't be a problem regardless of how you remove the heat from the system... less than 150watts...

Protip: fighting trolls in public is rarely a good look. Regardless of merit. Any time I see "professionals" use caps lock I laugh, no offense. Lol Successfully poor planning lol. Again no offense. People jumping to defend this co are as bad as the trolls imo. Let them handle their own...

Care to elaborate on what youve found works better as a profile under LED?