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PexiePoo's '18 Glog. Now with more Quantum Board & COB LED.

I love building things, particularly electronics. That lead me to building a grow light of my own. I used to be an HID kinda guy; think of High Pressure Sodium, LEC, and the like. LED lighting has never been for me as far as the red, purple, blues (think of Mars Hydro, Black Dog, KindLED, etc) but now, I really think they are. Here is the parts list:
 
It was built using two 5-foot sections of 3/4" angle aluminum to cover a 6ft table. the rest of the stuff is from cobkits.com

All together it costed about 280 before separate tools (hand held hacksaw for the rails and a rivet gun to tack it all together)

 
 
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Those chilis look really nice and if they start producing harvest under that new led light, it then works like it is suppose to.
 
What is the color temperature on that new light you have?
 
Chilidude said:
Those chilis look really nice and if they start producing harvest under that new led light, it then works like it is suppose to.
 
What is the color temperature on that new light you have?
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3500K
 
Check it out. made a photo red board to add to the spectrum. What a PITA this was, but the final result made it all worth it. Will show a plant shot after more testing is done. 
 
 
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Looking at your latest pictures, while the chili plants look really nice and even producing pods, they have a major edema going on with those leaves. Watering is quite hard to control indoors with big chili plants and they will get that edema really easy, had that edema thing many times too with bigger plants.
 
Chilidude said:
Looking at your latest pictures, while the chili plants look really nice and even producing pods, they have a major edema going on with those leaves. Watering is quite hard to control indoors with big chili plants and they will get that edema really easy, had that edema thing many times too with bigger plants.
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thats with the white spots on the leaves right? I was thinking the same thing. It seems to be a lot nicer now that i've switched to the General Organics line instead of their salt line.
 
PexPeppers said:
 
thats with the white spots on the leaves right? I was thinking the same thing. It seems to be a lot nicer now that i've switched to the General Organics line instead of their salt line.
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Sure sign of edema.
 
imo the heat get stuck in the pcb substrate which doesn't transfer heat well enuf to your heat sink
in board design wen you want to dissipate heat you put big ground plane that reach under the led with lot of thermal via to the other copper side and then heat sink
but they usually put them on aluminum pcb board but don't know how to homemade this
i don't know those led in particular but yes you can have load unbalanced between the two kind
 
PepperPowerG said:
imo the heat get stuck in the pcb substrate which doesn't transfer heat well enuf to your heat sink
in board design wen you want to dissipate heat you put big ground plane that reach under the led with lot of thermal via to the other copper side and then heat sink
but they usually put them on aluminum pcb board but don't know how to homemade this
i don't know those led in particular but yes you can have load unbalanced between the two kind
Click to expand...
 
I sent a few designs out to be made on aluminum PCB actually so you'll see that soon! also acquired some higher temp solder haha
 
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