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  1. lumen-geek

    Graphite thermal interface pads instead of thermal paste, anyone else using them?

    And you're using them alone, no thermal paste as a backup or for extra heat transfer? I'm gonna be running my chips hella soft at 700mA for the highest possible efficiency so around 22w each. This also allowed me to go with the smallest possible passive heatsinks. I haven't had the chance to...
  2. lumen-geek

    Graphite thermal interface pads instead of thermal paste, anyone else using them?

    I built a pretty rad new DIY LED grow light using 16 CXB3590 passively cooled. I'll be posting pics of the finished product on here soon, but I just want to know if anyone else on here has used the graphite thermal pads instead of the thermal paste? They look like they will be good as an...
  3. lumen-geek

    Lens and Reflector Optics for COB

    I actually am using individual passive pin fin heat sinks for each of my CXB3590 and I'll have plenty of spacing between them. I'm using square aluminum for my frame which should allow for plenty of airflow to get to the heat sinks. I may try using an oscillating fan over the light just for the...
  4. lumen-geek

    Lens and Reflector Optics for COB

    I'm actually going to be using passive heat sinks as well, so I really hope that heat won't be an issue either. Since I'm gonna be running 16 CXB3590s @ 700mA I'm gonna be mounting my drivers outside my tent probably on top and I'll have plenty of exhaust airflow to keep my ambient temperature...
  5. lumen-geek

    Lens and Reflector Optics for COB

    Anybody actually using the lenses for the Ledil Angelinas? If so how are you liking them? Are you able to notice the minimal loss of light?
  6. lumen-geek

    Lens and Reflector Optics for COB

    You're probably right, in a tent you won't really lose any light. The main reason I am utilizing the Ledils besides just for concentrating the light downwards is to have a protective cover over the LES on each LED chip by adding the optional lenses. Pacific Lighting Concepts has the lenses right...
  7. lumen-geek

    Lens and Reflector Optics for COB

    I wanna get 60 of them as a goal to get that many CXB3590s as well!! lol ;)
  8. lumen-geek

    Lens and Reflector Optics for COB

    $3.99 at Cutter.com, and if you place a large enough order they might even cut you a sweet deal like they did for me! Free TIM pads for my CXB3590 was pretty cool too! ;)
  9. lumen-geek

    Need advice on CBD consumption to treat cancer

    I've heard that chlorophyll can actually be beneficial as well. Then again I don't know for sure, heard it from a vegetarian! lol
  10. lumen-geek

    12xCXB3590 Passively Cooled

    No worries, I actually found a place that is here in the states that has the nylon corners fairly priced. It's crazy how much some places ask for just the corner pieces, I didn't even check them for the price on the actual aluminum since they were charging so much for the corners!! ;)
  11. lumen-geek

    12xCXB3590 Passively Cooled

    I miss having a wood stove! I'm a bit jealous bro! lol The closest I can get to this is the crackling fire they have on Netflix for those of us no longer blessed with a wood stove! ;) It just isn't the same.
  12. lumen-geek

    12xCXB3590 Passively Cooled

    Wow, that's not bad at all! I'm not finding any decent prices yet on the same tubing you went with, gotta love capitalism! lol You got the hookup on price, I may need to order from the same place as you. Unfortunately I can't read the language on the site, I'll figure it eventually.
  13. lumen-geek

    12xCXB3590 Passively Cooled

    Just curious what is the size of your tent?
  14. lumen-geek

    12xCXB3590 Passively Cooled

    Do you remember what the metal for your frame cost?
  15. lumen-geek

    12xCXB3590 Passively Cooled

    What a sexy looking DIY grow light you have there! I'm about to build a 16 cob DIY grow light also with CXB3590s and also with similar passive heat sinks. I will be running them off of 2 HLG 185 C700A drivers and I didn't know how I was going to assemble my light until I saw this thread. Thanks...
  16. lumen-geek

    Ideal Chip Lock 50-23 250v Max?

    Awesome! Thanks so much for clearing that up for me! I had a feeling it would work but had to make sure before I had a emajor mishap with my new chips. How do you like your 2530s and which bin are you using? My original plan was to go with 2530s also, but I couldn't pass up the high efficiency...
  17. lumen-geek

    Lens and Reflector Optics for COB

    After only a year of use I'd imagine the numbers would most likely be the same. I'd be more curious to know what they look like after a few years of steady usage.
  18. lumen-geek

    Ideal Chip Lock 50-23 250v Max?

    So I was looking at the specs on the Ideal Chip Lock holders as I will be running 8x CXB3590 with the Ideal chip holders in series off of an HLG 185 C700A driver which is 286v max. In the specs for the Ideal holders it says they are safe to touch in daisy chain applications up to 250v. Does that...
  19. lumen-geek

    Lens and Reflector Optics for COB

    Is that price of $0.80 for the KB reflector correct? Holy crap I'm glad you shared this info! I was thinking of going with either the Angelina reflectors or the Ledil 90 degree lenses, but I think I might go with the reflectors from Kingbrite just to save some money. I kinda like the idea of...
  20. lumen-geek

    Lens and Reflector Optics for COB

    Just thought I'd mention that Cutter.com has Ledil 90 and 120 degree lenses for only $4.24ea. I believe the part number is GL20 but I could be wrong about that. If you do a search for 78mm 90 degree lens at Cutter they will come up.
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