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OMG, completely new design, indeed inspiring :)

Anyone any idea how much heat an Alpine 11 plus can dissipate passively ? i'm gonna drive them softly anyway and was wondering what would happen if a fan broke

Where are you from and how much do you ask, i'd like 4 :)

I have the wires ready and can test different psu, i have a lot laying around but only 1 is 5V and doesn't work, another psu is a switchable one but with a loose connector, maybe i'll use that one but i'm afraid the connector will loosen up over time. I have a few other ones (2x 12v 1050mA) but...

It's to difficult for me at the moment to do stuff like that and it would take too much time, it has to move forward, but interesting none of the less :) and to be honest, electricity scares me a bit :roll:

Just went through it, great thread, thanx alot ! Yeah it's a learning curve, i went too fast and must clean again :(, it's in bits and pieces btw can anyone advise me on what's the easiest way to power 10 Arctic alpine 11 plus fans and dim them as low as possible ?

Great prices, i thought they didn't sell private, only to companies ? A big difference in cooling capacity at 1m/s for 43inch : 1360HS (0.205°C/W) <-> , 1372HS (0.088°C/W) ! How much Watt can we cool with that ?

I've drilled the wholes and am now using Arctic Silver to put them on, is there any danger in excessive heatpaste, i'm using the ideal cobholders and its difficult to keep everything clean PS: i just read online that it doesn't conduct electricity

I don't think there's a chance to fry the rest, like you said it just opens the circuit, nicely put, my english isn't that well when i'm stoned :roll:

For holes in the heatsink (ideal cobholders) i drilled with 3mm and then went to look in my toolbox for short M3 screws, the screws you use for computerparts fit perfectly :)

Don't thank me, i got nothing to do with this, if the cops fall in, pin-point supra not me ;) 'would four 3000k CXA3070s and one center 5000k at 1.05a do the job for each cabinet' that was my initial plan, i'd go for that setup on 1 HLG-185h-c1050B and a high turn pot, you'd need 100K for 1...

Update on Soselectronic's IT5498 : 2 pieces 132,5cm, each 101,5€ ex VAT 20% ex shippingcosts

I'm gonna try Charlotte's Web, i love purple :) it's tranquility and warmth in one color

You're really the pioneer of Led-light, king of cobs :)

Some go for 2-step because of a more precise spectrum, but most just go for 4-step because it's mostly 5$ cheaper, you won't see the difference with the naked eye and neither do the plants :) Someone correct me if i'm wrong

What would be a good source of UVB light, any preferences towards brands T8 bulbs ?

it would be for peak noon only :), I grew mj 10 years ago and saw the effects even after the plant was harvested, i tried drying under them and it could be my idea but i thought it was trippier with uv then without.

I thought i'd put them in U-profiles to have more of a beam, but i guess not enough lm/par for the wattage ? I say a review on youtube, and since you don't want to much UV either, I thought they would be enough for a closet

Originally I was going to use less 3000K cobs and a few 5000K in the middle, but since I have 20... I'm just afraid i'm loosing too much penetration if i go too low in mA, but for my surface 10cob, 2x5 is ideal for spacing, a bit less then a square foot (25cm2) for every 3000K cob the 120cm...

No, just 1 but 2 rows of 5, so 1 cob 3000K for every 25cm2