Lighting Cobshop.net info, questions and answers

[BigSm0]

Ok, I might have to wait a while before putting $500 into lighting.

Thank you @PapaEmeritus. Check out the site cobshop@cox.net They are a single cob so you don’t have to spend all that at once. This is one of the major benefits to this style. A large group of guys here buy them individually each week with a large quantity goal. 4-5 would be ideal for your space and they would work perfectly inside a tent.

 

[PapaEmeritus]

Thank you @PapaEmeritus.

 

[BigSm0]

View attachment 816002

Have you ever google searched “where is chuck Norris?”

 

[PapaEmeritus]

Have you ever google searched “where is chuck Norris?”

HA. That's awesome.

 

[thehazzle]

Yes mate definitely wouldn't recommend using in a tent!

How come? Too much heat?

 

[Gertrude 2]

How come? Too much heat?

Mainly having enough room above the canopy this is a big light with huge amount of power this is why BigSm0 recommended it more for photos! But if you have the hight it's fine for auto's.

 

[lunarman]

@BigSm0 and everyone else

Just got 2 autocobs and hanging them at an angle instead of straight down. They are hanging beside 600 watt HPS cool tube fixtures that are already in the tent and I don't plan on removing. The COBs are about 18 inches away from the closest canopy top right now. But I'm worried that might be too close.

What are the early warning signs when COBs are too close to plants? I'll watch them closely for the next couple of days but I have no idea what the early warning signs are. I figure burnt tips is what you see when in fact they were too close for too long but I"m hoping to catch things before then.

And I get 2 more COBs in the mail any day now to complete the setup so hoping to dial in the first 2 so I just need to hang the next 2 at the same distance.

 

[BigSm0]

@BigSm0 and everyone else

Just got 2 autocobs and hanging them at an angle instead of straight down. They are hanging beside 600 watt HPS cool tube fixtures that are already in the tent and I don't plan on removing. The COBs are about 18 inches away from the closest canopy top right now. But I'm worried that might be too close.

What are the early warning signs when COBs are too close to plants? I'll watch them closely for the next couple of days but I have no idea what the early warning signs are. I figure burnt tips is what you see when in fact they were too close for too long but I"m hoping to catch things before then.

And I get 2 more COBs in the mail any day now to complete the setup so hoping to dial in the first 2 so I just need to hang the next 2 at the same distance.

It’s always better to start a bit higher and lower them as the plants allow. I’d stick to 24” initially and lower them gradually. The strain does play a big part in it as well. Burnt tips are a sign of nutrient overload. Generally you will see the leaves curling inwards. Like this.

I have 3 cobs over this one plant here. The plant is taking up a 3x3 space and the cobs are at 20” away.

 

[Dudeski]

Those babies are talkin to ya sm0!

 

[lunarman]

@BigSm0

ok, what I should have asked was a different question. What I'm trying to do is find a setup that will allow me to have both HPS and COB lighting on 4 plants for some kick ass lighting throughout the whole grow. My question really boils down to how do I setup a hybrid HPS/LED lighting system so that both light types are being used properly throughout the whole grow without much work on my part?

Here is a pic of what I did today and where my tents sits today. There are 2 600watt HPS lights running down the middle of the tent in cool tubes with bat wing reflectors connected together with ducting and exhausted to the outside. For now anyway I dont see moving these lights. Due to the nature of the reflectors I think they need to be right above the plants in the middle of the tent right down the center.

And there will normally only ever be 4 plants in this setup. So 2 plants under each HPS light. And each plant will also have its own dedicated autocob.

I hung the first 2 autocobs from the ceiling and tilted them inwards to the plants. They are basically hanging right beside the reflectors and at the same height. If I put the cobs any lower they are too close to the plants. If I raise them up, their light is blocked by the reflectors. So in this setup the cobs and HPS lights pretty much need to be at the same height. And this might be a problem, or at least I think it is right now. If I raise it all up now then the HPS light are going to be pretty far away, and that might negate the positives of running a hybrid LED/HPS lighting setup. If the HPS lights are too far away then are they adding much to the growth?