Search results

Well without the protection afforded by the anti-corrosive properties of antifreeze, you could end up with more corrosion issues including leaks. But this is why I wanted to do it using a single bar. From other posts I've seen on this type of cooling system, with all the tubes/fittings...

I would think an antifreeze mix would be best as it helps prevent corrosion.

How would you use the tubing? I was looking at copper, rectangular copper tube does exist, but it AIN'T CHEAP, lol. How would you interface the cobs to them, solder a square piece of copper plate to a coil of copper pipe?

So for the "bar" are you using the extruded rectangular aluminum tubing? I settled on the 6" x 1.5" because it seemed to give a larger surface:volume ratio which I thought would help dissipate the heat better. I can weld, but don't have aluminum mig capability at this time (need to upgrade my...

Hello all, I know I'm new to this game but there's some skills I have that might help me with a project, which is to build an 8' x 8' grow room, i'll sketch the layout later, but suffice to say I'd like to run 8 - 8' cob fixtures. Priced the stuff over at HeatsinkUSA and the total came out to...

Citizen CLU048-1818 90CRI (choice of color temps) × 3 Color Temperature: 4000K $78.00 Citizen CLU048-1818 90CRI (choice of color temps) × 2 Color Temperature: 3500K $52.00 Arctic thermal pads for Citizen CLU048 series × 5 $5.00 Ideal holder for Citizen CLU048 series × 5 $17.50 MeanWell...

Well I got tired of chomping at the bit, especially after watching all of Mau5's videos, so I just ordered some parts from Cobkits, cant wait to put it together (I love DIY projects ;?)

Also I'm having a hard time finding what these stand for: Version# Bin CRI (70/80/90 ???) PFC PWM, Resistance And are they important, or should I just stick to looking at just the main numbers? Yeah, this is literally making me dizzy, lol, just can't wrap my head around some of this (it...

Well I checked there and cannot find this particular COB, nor any in the 5000K range, although a couple of their higher end units, like the 1825, jump from 4000K to 6500K, but they're twice as expensive and I really want one in the 5000K optical frequency.

THere's just too many variables/options listed on this site, it all starts to look like Chinese to me, lol. I wish there was some kind of simplified spread sheet where you could plug in the numbers you want and it would spit out a kit that had all the parts you need ;?D

That's where I'm finding it hard to glean the info. Does HLG-240H-15B mean that it's a 240-250v @15a/15,000mA and I forget what the B stands for (of the types A-D I thought I wanted B, is that right?).

Hello, so I'm a complete noob where this LED is concerned, I'm beginning to get a handle on it but still confused a bit when trying to order/match parts. I'd like to build a small 4-COB unit, 5000K CCT, using (possibly) this: CitiLED CLU046-1812C1-503M2G2 5000K COB LED Version 4 CRI 80+...

So did you finish that build, and if so, what was the total cost?

Really? Why is that, or is it because these lights aren't made over there? I thought they were all made in China, everything else is, lol. Didn't I read somewhere that they're being made there now, or are they just knockoffs? I consider it more a labor of love, lol, or a job that pays me...

Mypassion, I'm in the U.S., stuck in the Midwest at the moment, but planning on "retiring" to Oregon sometime soon ;?). How about you?

Mypassion, yeah at those prices I can see that Econsunlite is indeed cheaper, too bad I was looking forward to another challenging project, lol. So maybe I'll just have to start with 4 of those units and just for fun build one myself as I can afford the parts (maybe have one done by...

Cory, 1.4gms per watt sounds fantastic, I'd be happy with around 1gm so that's good news ;?) "DIY try cutter.au or timbergrowlights.com or cobkits (people use one cob per square foot at around 50w)" So if my grow area is 80 square feet, then I need 80 cobs??? That sounds like a lot, lol...

Lol, no I don't want to spend a lot of money, although I have considered taking out a small loan from my credit union in order to change all the lights over in one fell swoop. That way I can also get rid of the big inline duct fan which will cut down on the noise (which you can just hear...

30 hrs and 12 of 13 have popped ,:cool::hump::weed: including the two runts, and the one that hasn't is the biggun o_O, figures. So I guess the moral here is that one should never judge a seed by its size, lol. And I think that biggun's cracked so maybe be seeing the root when I wake up...

@Jd Short, I've been thinking about changing up my nute program and was wondering, if it's not a trade secret, lol. what you feed your girls, any additives, or are you straight organic? I'm running a sort of modified hempy bucket system but with the addition of a percentage of organics added...