cottageman said:

Hello, I’m wondering currently what are everyone’s thoughts on specifically vero 29 cob’s. I am making a 4x4 light build and I have 2 hlg qb 288 r spec for the middle, and I want to do roughly 4-6 lights around it for a perfect 4x4 light. Do you guys think vero cob’s are as good as the new chilled pucks? I like the cob style of light I’m just not sure if the chilled puck will give me the extra edge compared to the cheaper cob’s. 3500k 90 crib for the cob’s seem like they have more than enough red light without adding red diodes, am I right?

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Mr.jiujitsu said:

I would warn against those two in the center. They are great but will really make the center a hot spot. I tried that initially with the v1’s. I’m not running 4 132v2 3000k,4 132v1 (2700 or 2900 totally brain farting) and a single 132 v1 in the center (9x132qb) then I placed 4 48 Samsung red and deep red 4:1 strips in between the boards. This is my flower tent. Just an idea, again I played with the 288 in the center initially and eventually sold my 288 and went all 132 but that’s just me

I also like my controls - going through a potentiometer then a digital multimeter display then to the lights, broken into three zones

Example at 40% power, just reds, partial zones

Couple crappy shots


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420baby said:

Never heard about vero29 COB. For 4x4, is it possible to do 4-6 lights? I can image that would be very crowded.
I was using two Mars SP250 for my 4x4 tent. it is also quantum board design. Like the performance so far.

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cottageman said:

depending on the light it is very possible. Vero 29' are some of the best cob's and are usually sold by timber grow lights. I am basically copying this design and trying to reduce the hotspot in the middle.

This light has 5 pucks and the spread on this is amazing at 24 inches, better than most fluence style lights from what I have seen. I am just going to replace the one puck in the middle with 2 qb that draw roughly the same watts, if not a bit more

Click to expand...

Mr.jiujitsu said:

I would warn against those two in the center. They are great but will really make the center a hot spot. I tried that initially with the v1’s. I’m not running 4 132v2 3000k,4 132v1 (2700 or 2900 totally brain farting) and a single 132 v1 in the center (9x132qb) then I placed 4 48 Samsung red and deep red 4:1 strips in between the boards. This is my flower tent. Just an idea, again I played with the 288 in the center initially and eventually sold my 288 and went all 132 but that’s just me

I also like my controls - going through a potentiometer then a digital multimeter display then to the lights, broken into three zones

Example at 40% power, just reds, partial zones

Couple crappy shots


View attachment 890203



View attachment 890201

View attachment 890202

Click to expand...

dokgonzo said:

with a light board that thick do you ever get issues with air circulation? im just imaging the area dead center under and above the light getting poor ventilation. i dunno

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cottageman said:

depending on the light it is very possible. Vero 29' are some of the best cob's and are usually sold by timber grow lights. I am basically copying this design and trying to reduce the hotspot in the middle.

This light has 5 pucks and the spread on this is amazing at 24 inches, better than most fluence style lights from what I have seen. I am just going to replace the one puck in the middle with 2 qb that draw roughly the same watts, if not a bit more

Click to expand...