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I have been using rabbit tea as my only veg nute in Happy Frog or Ocean Forest with great success. My wife raises rabbits so its easy to get. I highly recommend it. Never burns and plants love it.

I like Timber Grow Lights. Already put together ready to mount on a frame of your design/choice. Takes all the guess work and extra expense out of it. Buy their's. You won't be sorry.

Do you do the same back of your hand heat test w/ COBs??

@Airwalker16 - that is untrue. These are purchased directly from Ledil along with the other Ledil accessories we use and sell. Don't have any reflectors from Jerry - never used them. Please check your facts more closely. tell'em Dan

So whats the sf light coverage recommended for 4 cree 3590's ? 200w at 50%. What happens if I run them at say 80%? More heat? How much more light area? Probably won't run them too long anyway as new tech lighting comes along maybe CMH?? I'll want that. Know hat I mean?? So running LEDs hard...

what about heat sinks? I live in Eastern Oregon at 5000' with a hoop house. Could use use some warmth options. no electric available cold is coming fast

I've been lurking for a year now. Trying to get a handle on COBs. Used cfl first. Worked. Kinda. Have 2 18"x27" x48" tall cabinet. Good airflow. Thinking 2 bars with 3 each 2530s or Vero 18's on them. 1 driver for each bar. I have cpu heatsinks and fans. What color is best for autos?? cree...

Rebrand??? This is curious.....

Digikey.com I think is where everyone buys.

What are you running for lights now?? I'm still contemplating my 18"x27" area. Thinking 6ea vero 18's on 1 dimmable driver. Veg and flower both so 4000k. Sound reasonable? Or 2ea 3590's ??

Thats what I mean. Tell me about it. !!! Why square vs 2 bars? How big a grow area???

I'm using a 300w power supply out of a desktop computer. Run as many 12 fans as I want. I get them and the fans and the heatsinks for free from a computer repair place. Units are going to the dump. May even use the case horizontally to be the light case. I have found that I can get a variable...

I like your thoughts on the more even intensity and light spread. I've drawn some diagrams of various light layouts and the 6 vero 18s in a rectangle look awfully good. How big is your grow area? I'm wanting to do this once for this area and do it right. I like the idea of 2 cobs for simplicity...

So 2 Vero 29s, or eqiv Crees, dimmable over 2 plants. Sounds doable to me. Now to chose the right driver. Suggestions?? This is cool!!

Thanks, I'm getting somewhere. I think I like the 4 cobs at 25w. Wider light coverage, less heat. Are 2 plants 2 many for my space?? I need to know. ??

I like this idea as well. How do you determine how many COBs to use in a given space?? I feel like I'm missing a major piece of this puzzle and I've been reading this forum for months. Thanks for your help. What do you guys recommend for small area like mine- 18" x 27" ?? I am really wanting to...

Brettsog: How big is your grow area??

So there's no need for 2 different COBs to veg and bloom. Good. I thought that was the consensus. So the real question becomes which COBs to use for my 18"x27" x48H space. 2 CXB3590's dimmable or 6 Vero 18s or Cree equiv. dimmable. Will the Crees be too hot at the end and burn the bud?? That...

I have a small grow area about 18" x 27" x 48" high. I want to create a COB light I can use for both veg and flower. From reading I'm thinking of 6 VERO 18, 4000K on dimmable driver. Run at lower power for veg and crank it up for flower. Or 6 Vero 18, 3500K for flower, 4 Vero 18, 5000K for veg...