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yeah...these are one of the highest binned led out, cree cxb 3590 5000k db bin. Over 200 l/w supposedly at the current they are running. About 350ma and 12.5w each in the picture....3 at 500ma and 18w each with a dimmer would be about the perfect light for the space. Could passive cool it...

It was $240 with shipping when I looked. Thats some coin but it does have separate channels so you could possibly control the growth a bit better. Tasty led, one of the advertisers here might have a good light for your space. Not sure of the dimensions, it may eat up a lot of headroom. 40w a...

Well you need something low profile.. Hans panel is good but hard to recommend knowing how well cobs work. Still its plug and play and would work well I'm sure http://www.bonsaihero.com/index.php/ledgrow-led-panel-85-w or..of course...just build two cpu cooler cob setups. Should cover the area...

Put a few veros on small passive sinks and place it around the perimeter. Heater that makes 140+ l/w..lol

You just need to check the driver and LED data sheets. min voltage on the hlg 185c is 71v so you should just make it at 72v with two cobs. Driver efficiency would drop from 94-95% to 92-93% efficiency. Not too bad I don't think. I did something like that recently. Like you said, you can always...

Great point.. I don't see that echoed often enough. Lots of recommendation to use the driver but not much warning. Thanks for the clarification on how they would be classed.

thank you for not being a talking billboard @Greengenes707. Ya been "professional" about everything including the mudslingin'...nothing wrong with advertising too though.. I'm waiting for some of the others to start offering a sham wow with their lights. And they wonder why they get heat on a...

So this is what 5k @ 40w can do in a 2' x 1' The new owner is pretty amazed, glad he's happy.

Try and explain it best I can.. The cob does easily pop out. The process I use is a extra step compared to putting the TIM on while in the holder. They all WILL stay in. Some more so then others 1. Put TIM on COB as evenly and thinly as possible out of holder 2. Pick up COB by edges trying...

Couldn't help but notice they have a new ad on RIU. CXB 3590DB bin at $47 USD....$4 angelina XW... Looks like a good new source for parts

Was more interested in the specific videos you liked. When you have time, no worries. Any pictures of lights? grows? So we can see how the 420nm/660nm stacks nodes and increases trichomes... You can check my thread Diy led grow for about 2 years of steady grows using monos and cobs

looks a little dark on the edges. Nice and bright in the center. I recommend turning the light all the way up so we can see what it can really do

I'm no u2 fanboy... But I did enjoy the concert they put on last night.

Any links to those videos? Sounds interesting..

Every genre has someone that sucks and someone that rises above most and crosses genres. Good concert last night. Music with a message, should fit perfect in the politics section too. Eclectic should just be called open minded, its what it is. Conservatives not open minded? Who woulda thought.

@Abiqua Worked for me. Just needed to update Java with the development kit. http://www.oracle.com/technetwork/java/javase/downloads/index.html Pretty cool.. I must guesstimate pretty good. Calc put me within 3" inches of the length I used on the last one. I do normally like a little extra...

Does the wire feel warm? That's why I don't use thermostat wire... Low voltage. Radio shack online has a good selection, small quantity of higher voltage wire's Maybe voltage calculation off? How many volts are you running and how much allowable on driver. A wire that works when jiggled is...

I'd guess a wire was shorting out somewhere. Did you notice some dim and some not. Lot of times the point it becomes not lit at is a trouble spot Use a multimeter to test each star possibly...may now have a dead one..

Thats what it will be for the most part. 730nm always on, may just put a few cree 670s back in too. About as full a spectrum as I can fit..

alright we have a tie at 1 vote each. lol...white power! @mc130p That worked out well, its the one I was thinking of. @PurpleBuz I'll do the 4k light soon.Its been too long since i"ve run that one. The Arcadia UVB tubes I run have quite a bit of UVA in them. They are a mainstay for now, at...