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Couple things... Can you point me to a design of an ICE that ever used air cooling? More like "different problem, different solution". As for global heating not being a problem if you just watercool it... the oceans would like to have a word with you ;) You should really educate...

If you plug the timer into that a shutoff will likely screw up your light schedule as well unless the timer has a battery backup.

@mahiluana Something you might be interested in. Also, estimating your driver efficiency could throw your final numbers pretty far off... Are you sure your driver is ~95% efficient? Also, your revelation about your heat loss to ambient is why I made my previous comment about using...

So just an extraction fan to actually cool the room? I mean, I understand how your lighting cooling works. Im referring to the grow room.

Didnt you make the first claim in the thread to not touch the leaves and after others offered differing viewpoints you decided to call them out? Shouldnt the burden of proof be on you? But more importantly, is his anecdotal evidence really of no use? I mean are you going to claim that his...

Does this model make any improvements upon the COB calculator that everyone uses around here?

Not necessarily... if your producing more photons more efficiently it doesnt really help you at all if the plant cant efficiently use that light for photosynthesis.

Efficiency at producing photons and efficiency of photosynthesis are not equal.

You dont have to add heat, you just remove less. Condensation only becomes a problem if your cooling system is below the dewpoint of the grow room. His scenario will almost certainly never result in condensation forming. How do you cool your grow?

Could you elaborate on this "optimal equation" to the whole "cri vs lm/w"? Honestly I didnt know there even was a CRI vs lm\w battle. I always figured the importance of lighting factors as intensity, followed by color temp followed by cri. If there's information out there that says...

Considering its one of the only tests available to compare this model to see if the model actually works, yeah Id say its a pretty important takeaway. But really, what is so funny about that question? Is it because no one would ask to compare those two cobs? Is it funny because the model...

Hey guys, Im new here, I need help deciding between 80cri 3000k and 70cri 3000k citi 1825 chips, which should I choose?

Im still waiting to see if this calculator puts 90 and 70cri ahead of 80cri 3000k, (you know as rahzs real world tests show). If it does I wont question the efficacy of this calculator. If it doesnt my original comment about this being simply theory crafting at its best stands...

Im actually advocating for more testing in this thread, do you know what studies do? They do testing to gather data. I remember the thread you are referring to, and ironically, you made it specifically to troll the many people that didnt agree with you (again based on data, not theory)...

Why did you put real world in quotes? And where did I claim to be an expert?

So if you run the numbers it will put 70cri and 90cri ahead of 80cri in the 3000k bracket? You think light quality is actually more important than light quantity. Every study ever says otherwise, so I dont know how much weight to give your opinion in a thread like this.

Real world efficiency isnt what youre getting though. You are "simulating" everything... But thats more of a semantics point that is rather pointless at the moment. Im curious for you to take the data from Rahz's thread and see if the simulations youre doing at all reflect the real world...

Energy is energy. That said, the methods for cooling are vastly different and that, I believe, is where a lot of the confusion comes from. Cooling a bulb by passing air over it is far less efficient than strapping a heat sink to the back of a cob and cooling said heat sink.

Comparing industrial scale outdoor farming to indoor personal cannabis grows is silly. Even if it were beneficial it is highly unlikely that it will be cost effective for a farmer. A personal grower on the other hand is a completely different story.

What Im getting at is all of this theory crafting merely adds confusion to everything. Case in point, real world efficiency should not be calculated in a program, because then its not real world efficiency... Also, would the data coming out of this calculator reflect the information in this...