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Ignore my plastic (grow)cups, they are temporary. I usually start seeds/clones in either small rockwool starter cubes(1"x1") or standard peat pellets. Once rooted, they go into 3.5" square pots with a single layer of hydroton at the bottom filled with coco. I veg a few weeks or until the plants...

The flood drain is really simple. There is a small fountain pump that will go in the tote below that tray and it's hooked up on a timer. It pumps water up to the tray and there is an overflow vent that prevents the tray from overfilling, the excess runs back to the reservoir and after the timing...

Thanks Tim, I think everyone should be ready for any type of emergency. My first really large grow was 10 yrs ago, I had just filled a spare room and hurricane Katrina came through and wiped out power. We were in a duplex with neighbors and even worse, my girl's family came to stay with us due...

About as awesome as it gets!

Here are some measurements I posted at another site the day I got them. This was bench tested, not in the cabinet so actual temps may be different but everything else should be spot on. I have a driver plugged in to a "Kill A Watt" for wall readings and a multi meter on the DC side, along with...

Sorry Aquarius, I meant the efficiency of the COB. I see where some guys are running about 40% efficient, and the new CXBs supposedly run even higher. I should have been more specific but thanks for taking time to read/answer. BTW, I have a nice multi meter and a Kill-a-Watt to take actual...

I also have a question for Supra, or anyone that can answer it really(I know Supra is a busy man!). I will be running CXA3070s AD binning on these cheap 1500ma drivers...

Church, where are you measuring the 50-70C, just curious. I measured mine beside the chip, right at the edge of the heatsink and chip but heard that was an inaccurate place. I can't measure temps between fins on back of the heatsink, they are too close together. Thanks

Awesome grow, I have (4) 3070s @1500ma in a 2x2 that will be fired up as soon as my plants get through vegging. Looking forward to your results!

I've read this thread a couple times and still don't know wtf you guys are talking about. It's like a run-on sentence of arguments for 6 pages. Is this about LEDs, HIDs or just an inside joke that newbs like me aren't invited to?

I use those server cabinet frames for all sorts of things around the shop at work. Good show!

In for the grow, thought it had been a while since I last grew, you got me beat by about 25yrs :lol:

Is there a product characterization tool for the CXB like there is for the CXA lights? I can't seem to find anything. Just wondering how much more efficient the CXB are over the CXAs.

Nice repurpose!

It will work this way too, but you loose light. Everyone I knew that has grown with a light mover yielded only slightly more than without, in the same equsal space and the buds were extremely airy. You aren't adding light, you are just moving it around so think of it like you are also spreading...

Hey Werm11, thanks for stopping in! Those "grate" are soffit vents from home improvement stores. They will not completely bock the light alone so I use a "cut to fit" activated carbon filter material to assist. I put one vent cover on the outside and one on the inside with a few pieces of the...

I think 4 individual heatsinks would be the better plan. I've been considering my next grow(though this one hasn't even started) and I've been thinking two 3x3 tents on a flip flop is where it's at. I think I could get away with the four CXA3070 ADs I have running 1500ma in one tent and bump it...

Thank you! I have been trying unsuccessfully to pop some beans I've had that were not properly stored for almost 10yrs and it's driving me nuts. I can get 100% germ rate from new schwag seeds right next to the good genetics but the good ones are just too old I guess. My old grow friend heard of...

And I built a DIY 25lb carbon filter to cover ventilation and smell. I'll add a couple coumputer fans above the tray for circulation.

Couple more