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  1. hicpic

    Matching Drivers and COBs

    Unfortunately my setup requires passive cooling and 1400ma is just a bit too much in terms of heat. But for anyone interested sager.com has some.
  2. hicpic

    Matching Drivers and COBs

    Did anyone recently buy a HGL-120H-C1050? Cutter does not stock them, and mouser has a 14 week back order going on. Wanted to run (4) CXB 36V, and that seemed to be the best option.
  3. hicpic

    12x3590-DIY Cree COB Build

    Ive been busy with life, finally had some free time to catch up on threads and BAM! Just look where you are! And of course I show up right before the thrilling finale. Everything is looking aces. When you're done, I would love a quick breakdown of what you would have done differently (self...
  4. hicpic

    12x3590-DIY Cree COB Build

    Nice, excited to see this. Take lots of pictures!
  5. hicpic

    DiY LEDs - How to Power Them

    :shock: are you located at the top of Mount Everest?
  6. hicpic

    Matching Drivers and COBs

    Right now my plan is (4) 3950 per HLG-120H-C1050. While looking at the spec sheet, one of the wire schematics showed a relay and switch. I was wondering if anyone had looked one up to there driver? I was hoping to use a Raspberry Pi a a controller.
  7. hicpic

    Lens and Reflector Optics for COB

    I thought Jerry would be cheaper, but it seems to be about the save in terms of price. Cutter actually wins out if you buy the kit (cob, holders, reflector). Disclaimer: haven't bought from either yet, this impression is just from pricing things out. Would love to be confirmed or corrected.
  8. hicpic

    Top bin COB comparison

    Any update on the Vero 29 vs cxb bout? I had my plan set to 3 bars of 4 cxbs. But after finding and reading through this thread, I'm not as gungho about it. I also have some thinking to do about my bare walls.
  9. hicpic

    Tech Talk Live Stream

    Bump? EDIT: NM, got to the point in the vid where GG stated it was custom made :(
  10. hicpic

    Mau5Capades: builds & grow journal

    This is my biggest fear, what keeps me reading and digesting all this info. If when you fix it, please post what the issue was.
  11. hicpic

    Mau5Capades: builds & grow journal

    I just ran across a great blurb on this. Oddly enough it was on a HID sellers website. "Kelvin temperature is the unit of measure used to describe what color a lamp appears to be when it is lighted. Kelvin temperature is a lighting term used to relate the color appearance of a lit lamp to the...
  12. hicpic

    Why do some want high CRI?

    Where did you get that chart? I would love to read the source material around it. Ah, I was looking at the 3000k as a whole, not just the 90CRI 3000k. Makes sense now, thanks for the clarification. Can you like that spread sheets source? I would love to look at it in more depth.
  13. hicpic

    Matching Drivers and COBs

    Im glad you asked, I was just looking into this myself. It seems to be related to the light color and consistency. 1 step would be that all leds in that group would be indistinguishable from one other to the human eye. 2 step would mean that people could distinguish the difference by 1 shade...
  14. hicpic

    Why do some want high CRI?

    Why is BD "top bin"? On the spec sheet the 3500k CB has more minimum flux. Am I missing something? Im still trying to decide the LED that Im going to be using. I was looking for info on if CRI would make any diffrence. If not, the 4000k of the CXB3590 seems to be a good contender. It seems to...
  15. hicpic

    IF you are new to LED and want help choosing what to buy, POST HERE!

    Is this considered "top bin"? CXB3590-0000- 000N0BDB40E Also more elementary, what's the difference between bins? I was thinking about getting the 4000k version listed above. According to the spec sheet, it appears to give 8% more lumens than the best performing 3500k bin. (13237 vs 14340)...
  16. hicpic

    Lens and Reflector Optics for COB

    Wow, ask and ye shall receive huh? Did you just do that? This makes me want to start a "best of" resources thread.
  17. hicpic

    Lens and Reflector Optics for COB

    That's the price point that makes sense for a bit of plastic. Anyone try them yet?
  18. hicpic

    IF you are new to LED and want help choosing what to buy, POST HERE!

    I'm glad you mentioned lenses and reflectors. I think I'm going to try my build with a lens. What do you use?
  19. hicpic

    DIY LED Grounding Question

    If I'm reading this correctly, I don't need a grounded heatsink. But if I was inclined to do so as an added layer of security, I would just connect the ac side ground wire of the driver with a screw to the heatsink?
  20. hicpic

    Another CXB3590 diy thread --- PPFD and passive cooling questions

    Wow! Don't leave us hanging, how's it going?
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