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  1. bombbudpuffa

    DIY COB grow light

    https://www.amazon.com/9448A-Double-Coated-Tissue-×55Yds/dp/B01CZGLIAC They can withstand high Temps but this light won't get even warm with the active cooling. https://www.ebay.com/itm/48Pcs-Double-sided-Thermal-Adhesive-Tape-for-Heatsink-25mm-X-25mm-/262246455346
  2. bombbudpuffa

    DIY COB grow light

    The double sided tape is used as a heat sink adhesive for low watt led. I've used them several times for this exact purpose.
  3. bombbudpuffa

    DIY COB grow light

    As you can see in my last pic the fans leads were too short so I soldered extra to it, pull tied all the wires together and secured them to the frame with pull ties. Don't mind my weird wiring. Couldn't find my black wire so green is - and red is +.
  4. bombbudpuffa

    DIY COB grow light

    No problem at all. Next you want to get an aluminum angle. This will be used for framing your light. Now I was just going to drill holes and use the plastic push through on the fan and push them through the holes. I decided against it, removed the plastic push through and tapped and screwed...
  5. bombbudpuffa

    DIY COB grow light

    Now you have a chip mounted to an active heatsink. To be continued...
  6. bombbudpuffa

    DIY COB grow light

    Take your double sided tape and place it on your heatsink, stick your chip to it, making sure your holes line up. Take your time because the tape is crazy sticky. Put your screws in and put your fan back on.
  7. bombbudpuffa

    DIY COB grow light

    Adding threads is a @#%#@$%!! You need to be very careful because the bits break very easily. What you have to do is oil your bit, start drilling very slow and at the least sign of resistance, stop and back the bit out. Clean the metal from the tap and repeat until your threads are in.
  8. bombbudpuffa

    DIY COB grow light

    Now, the aluminum is slippery so you'll need to put impressions in the metal for your drill bit to go in to avoid it sliding offline. I used a hammer and a nail. Then drilled the holes.
  9. bombbudpuffa

    DIY COB grow light

    Next position your chips on the heat sink, making sure to avoid the fans mounting holes, and mark the spots you want to drill.
  10. bombbudpuffa

    DIY COB grow light

    Mounting your chips I'm going to use some 3m double sided tape and a couple 1/4 inch 4 40 screws. First I have to remove the fans to drill the holes for the chips to be mounted. I'm removing the fans so they aren't damaged by my drill.
  11. bombbudpuffa

    DIY COB grow light

    A quick word on the chips and holders. Each chip has a + and - side. The holders are made so the + matches with the +, - with -. If you look closely in these pics you can see the +- on the chip and how I have the chip positioned in the holder with + to + and - to -. This is also how your chips...
  12. bombbudpuffa

    Indicas

    COBs are killing it on veg. Plants are just so happy under them. I do have to water a lot more but stems and stalks are so thick, plants are so happy and green.
  13. bombbudpuffa

    DIY COB grow light

    So, I'm going to put one together and let you all follow along. I'll be using 5 Cree CXA1304 9v chips https://www.ebay.com/itm/Cree-XLamp-CXA1304-led-3-7-10-9W-COB-Natural-White-5000K-9V-LED-Chip/321634797906?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649 They'll be...
  14. bombbudpuffa

    DIY COB grow light

    Thank you rose!
  15. bombbudpuffa

    DIY COB grow light

    Thank you THG but, I promise, anyone could do it. You can make one without touching a soldering gun. I'll show you how easy it is.
  16. bombbudpuffa

    DIY COB grow light

    So, here's my latest light. Using 3 36v chips. In order to find the right driver to run three I had to multiply 36 x 3 which gives me 108v. So, I needed a driver with, at least, a 108v output. I went with this inventronics driver with an output of 142v at 1050ma. Since I'm using active...
  17. bombbudpuffa

    DIY COB grow light

    What you'll need- COB led chips. Cree CXB3590 and Vero29 are the most popular. I haven't used either so I'll just use for an example what I use. I use the citizen clu048 1212 chips. They're rated at 36v, 2800ma max. Led driver. My chips are rated 36v, 2800ma max but typical or preferred ma...
  18. bombbudpuffa

    Building a 1 watt LED light

    Latest build. 3 citizen clu048 1212 chips running at 1050ma on a dimmable inventronics driver. Pulling 30w from the wall fully dim and 140w from the wall turned up 100%. Using three active heatsinks driven in line by some lil 12v drivers.
  19. bombbudpuffa

    Indicas

    Cannachar Biochar made from weed stems and stalks.
  20. bombbudpuffa

    Indicas

    Icookies x Deep Chunk
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