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Thanks man! She's looking better every day! Now I've got to get the veg section going and pop some more beans!

Day 20F: She's looking really happy overall after the defoliation. Starting to develop some nugmeat and even some frost. She is looking a little pale in places though, not quite sure what that is yet. I've been struggling with a leaky humidifier, might have to order a new one here soon...

Arctic would be the best choice. If you mount a few of them together side by side you can increase the amount of air moved, but it won't get very far. If you mount a few together inline with each other you can get a little more velocity, but would be more of a spot fan. If you are really...

Looking really good man!

That's just a reference to show you how to space them on the bar if you want to run the chips linear and equidistant, which is the most thermally efficient way to runs these extrusions. You can space them however you want (within reason) as long as you have enough surface area.

Even if you're only losing 8w to those little drivers, that's 42w consumed per chip. At 35% efficient (a generous guesstimate given the lack of info) that's only 14.5ish PAR w per chip. About 175 total for both your fixtures. That's roughly 30 more than my fixture, which was also built using...

C/W/3 is a factor of thermal resistance. It tells you how much hotter in Celsius, relative to ambient air temps, a 3" section of heat sink will get when dissipating 1 watt of heat. A good rule of thumb for extruded heat sinks is 6sq. in. of surface area with active cooling, or 17sq. in. of...

Day 15F: Today this beautiful little girl became a woman. She's had enough of small town life, so she moved to the city and shortened her skirt, a lot. :cool: She was real thick below the net, and the lower growth just wasn't getting any light. I wanted to wait until day 22, but she...

Looking great man! This is going to be a awesome build!

First off, props to you for taking the time and resources to build this. That being said, I think you're barking up the wrong tree here. The words, "white paper" and "manufacturer" are mutually exclusive. Also, I think you should look into who @CobKits is and what he does before you try to...

Did you come here just to bash LED? You could run three of those Timber lights, use the same amount of power as that 600w HPS you're pushing, and triple your harvest. Or run one light and save 400w of energy usage.

Personally, I would rather have the solid connection of a solder joint. Plus there's no chance of corrosion getting between the contacts. I can see how in a production scenario the solderless holders would be much better though.

This was my first ever concert at like 13 year old... got offered acid-laced watermelon by a little person with hair down to his ankles, got propositioned by some cross dressing hookers, and puked in the bushes. Needless to say, I was hooked.

The drill press is well worth it if you can find one for a decent price. You can do it with a hand drill, but it's such a hassle. Arctic is the way to go IMO, I went with Coolermaster cause I'm, how do you say, "thrifty" lol

Thanks man! Honestly, discrete diodes like the QBs, Sun Boards, NextLight, Fluence, etc., are definitely the way to go for tent growers and vertical farming. Commercial/warehouse style ops, maybe, maybe not. It all depends on growing style. I really cant wait to see the results from that new...

Coolermaster fans are great if you want to save a few bucks. Arctic is better if you really want the best. AC Infinity fans are top notch too, they run on AC power, so they're a little tricky, and noisy as hell. Try to mount the driver as close to the fan as possible to get the best cooling...

Day 12F: Cruise control at this point. She's stacking up nicely and looking really happy. Definitely my favorite shot at this point.

Who am I kidding? I don't sleep regardless lol Dude, googled that tincture; wish I would have known about that. Props man! It's all UK websites that come up, so I'm guessing that's a British thing... Love my peeps across the pond, you guys just have a better way of looking at things. Now that...

My bad, looks like my link isn't the high CRI like you ordered... anyway, dig around, I'm sure someone has singles.

Crazy man... you're waking up and I'm about to call it a night... I totally feel you about the teething thing. Try soaking a corner of a blanket/washcloth in water and freezing it. They love the cold. Anyway man, try Component Distributors Inc. for the single chips. Here's a link to the 3500k...