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250 cmh is about 8830 cfh. At 4x4x7, vol=112cf. At your specified medium fan setting/capacity, you'll get 79 airchanges every hour, which is more than adequate. If your ducting and filter reduce capacity by 30%, then you'll still get 55 changes per hour. Your setup should be fine from an air...

The problem with tents is that if your CFMs are too high, the side suck in too much unless you have side bars, so maybe you want to use flex tubing to lower the effective CFM of your fan and minimize negative pressure in your tent. A note about fan speed controllers...those cheap $15-20 Pulse...

Bends on either side of the fan will reduce its ability to convey air (bends on the intake restrict the draw, bends on the exhaust restrict the push). The smoother the bend, the better, so sheet metal duct bends are better than bends in flexible ducting. Larger radius bends are better than sharp...

Nice looking plants! What will you be crossing the male P with? Also, how long did you take them before harvest, and how are the effects?

Looks to be a nice thread revival coming soon...awesome!

Should be soon, hope you get 100%. Looking forward to watching the Ms flourish. If indoor, what will be your training approach, if any? Also, media and light?

How are the Malawis doing?

Yep, some might say blood on the street, but in the crypto space 40 down from the peak is par for the course and is more like a small flesh wound that requires a tiny bandaid... Suffice it to say, there are two types of people in this world, 1) those who buy a little when there is a little...

Who is this forensic accountant that doesn't like canadian mj stocks or the frothy blockchain?? Looks like he missed out on the rock solid gains in the mj stocks in the last several months, and the 1000++% gains in the cryptos this past year. I'll pass on his advice.

100% legit but don't be surprised if it takes them 1-2 weeks to process the order before sending out...

I tried to germ 6 last week and they are a fail...they swelled a bit but no dice. I'll search the site for the tips and try another batch of 6. Good news is my tent arrived!

Dave, if you don't mind, I'd like for this thread not to be a sales location for any items, including kits, cobs or components. I am sure there are numerous threads focused on that already. Thanks.

That bb looks very nice

Series circuits: Add up the forward Voltage for each strip in your build to get your total forward voltage (e.g. 10 strips at 23 volts = 230 total volts). Find a driver that has an upper voltage limit that is greater than your total forward voltage and a lower voltage limit that is lower than...

Cool, are you running that light through flowering? If so, are you supplementing with lower K temp or just using the 5k?

I am coming to the same conclusion, especially after some of the eb and samsung strip threads. I have some samsung gen 3 strips to play with, I want to mess with the cobs first. My second light will be based on the strips.

OK, I see the point. when I get some more current cobs and have a replacement light, I'll run some heat tests to see if they can go passive on the same set-up. That would be great if they could. BTW, what cobs and driver are you using, and are you cooling passively?

that's fine, this is my first light to f around with. I can upgrade it, cannibalize it, or mod it later. The diff in price between the two is more like $80, and agree its not that much, but it will allow me to have a light and buy another driver, which I'd rather have more than only a light...

Yeah...ive been watching those. Its a process in motion...Cxas for $1 - $3, citi for 9 today, 3 tomorrow.

Cool, thanks for the recommendations. I gotta hurry up and get this thing done...