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  1. Organic Miner

    home depot cree light?

    I use about half a dozen of the 100W Cree bulbs on my mother plants. $60 of LED lighting and they seem to love it. Grow right to them.
  2. Organic Miner

    buying heat sinks from alibaba is it worth?

    Did you end up buy those? I am interested in the same thing, but need 36 of them (right now). Please, post your results when you recieve them. Thanks.
  3. Organic Miner

    Hydro & LED, let the best of two worlds combine

    I have a 2 tier veg roow RDWC setup. 8 buckets on top and 8 on the bottom. Have 8.5' ceilings in my basaement. so I split the difference on grow height. The tricky thing was plumbing the single resivour that sits on the floor. I need to post some photos when I have all 16 buckets filled (only...
  4. Organic Miner

    Hydro & LED, let the best of two worlds combine

    I run a dual RDWC setup: 1 for veg and another for flower. I will post photos once I get my COB lights built. Just need to get off the fence and order parts. ;-)
  5. Organic Miner

    Lets talk about "Other" COBS !

    I was planning on running 6 1212's @50W (dimmable) with a single hlg320-1400. There is a little horse power left over, but it makes for a good setup. The problem with the 1812 and 1818 is the +50V's and mapping those into a driver efficiently.
  6. Organic Miner

    Cheap and Cheerful DIY using Citizen cobs

    That's funny, I was just considering ordering 36 (or 72) of those. Like you said, hard to pass up. My misses already said "just do it!". ;-)
  7. Organic Miner

    Lets talk about "Other" COBS !

    Yes, compatible holders, reflectors and heatsinks can all be found on the CDI website.
  8. Organic Miner

    COB Manufacturers other than CREE or BRIDGELUX

    Do you have any idea what the efficiency is at 37W? I am intrigued by the 1818 and 1812's. I am thinking about a similar build.
  9. Organic Miner

    Active Cooler Adapter plate

    If by "reversible" you mean flip the fan over and mount it the other way, that would be great. I would not want to drive the price up by making the fan reversible. I really like the the design though. I have been looking for such a solution that does not cost "arm and leg"!
  10. Organic Miner

    Active Cooler Adapter plate

    The problem I see with this design is that you will blowing hot air down onto your plants; especially if you are driving your cob hard, then multiply it by N cobs. Just a thought.
  11. Organic Miner

    What is my PPFD?

    I have always been confused as where does the "4.65" (GreenGeens, 4.66) come from and does it depend on which COB you are using (2500K, 3000k, etc.)? Thanks in advance.
  12. Organic Miner

    light cycles and spectrum to finish faster

    Just finished a grow using this "monster cropping" technique. No joking, I had some monster buds off my "Cherry Pie". Need to find some some pics to upload.
  13. Organic Miner

    DiY LEDs - How to Power Them

    Like I said in the previous post, these are constant current drivers, they will max out at 1.4A and whatever voltage that takes. in your case, the maximum voltage is 179V so you will be maxed out. The power supply should take this no problem because the spec says so. Even though you COBs would...
  14. Organic Miner

    DiY LEDs - How to Power Them

    One thing you could do is use your multimeter to measure the voltage drop across each cob. The sum should add up to 120v (which you are currently seeing). Remember the specifications are only a range of expected Vf @ the given current. Depending on the grade of the actual batch you received...
  15. Organic Miner

    Continuous process improvement for growing better bud!

    Continuous process improvement for growing better bud!
  16. Organic Miner

    Looks like susi-duktape executable is out of sync with docs. Now uses a json conf file. What's...

    Looks like susi-duktape executable is out of sync with docs. Now uses a json conf file. What's the format?
  17. Organic Miner

    My Arduino & LEDs

    :lol::lol: @SameSane - Thanks for the github link. I will download the source and check it out. :lol:
  18. Organic Miner

    Pictures of your DIY lights - Post your pics!!!

    Great site. Just registered. One stop shopping for a lot of great information. Keep it up! :-D
  19. Organic Miner

    My Arduino & LEDs

    @SameSane - I would be interested in what you are up to. I have been following several similar Open Source projects. My goal is to eventually automate/monitor many aspects of my grow rooms.
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