What's new
By:
GrowWeedEasy.com
You're browsing as a guest. Sign up to join the conversation, share your grows, and get help from thousands of fellow growers — it's free and takes less than a minute.

Led and cob

J

Jeezusjuiicee

New member
So I just found out about cob LED lights. And I'm trying to figure out if they are better than the classic LED grow lights that have the RGB spectrum. Is cob LED the newest technology? I've only seen 1 cob LED in all my searching for grow lights .So I'm assuming they aren't very popular .Can anyone explain them to me? I get the fact that cob means chip on board though! 💡🔦😁
 
I use 4 55 w autocobs. They are easy to work around, no ballast needed, give off little heat, especially compared to hps, and they hardly affect my electric bill. If you're interested in them, go to afn.com. In the grow light companies forum, you will find everything you need to know about autocobs. talk to BigSmo to get one if you are interested. He's the guy that sells them.
 

Attachments

  • photo57914.jpg
    photo57914.jpg
    656.5 KB · Views: 0
COBs serve a purpose of their own. Which is primarely for DIY.

But they are less efficient compared to traditional surface mount diodes because of convection of heat and the concentration of that heat on the chips themselves. Alll of the best high end fixtures are made using surface mount diodes, which is the only way to go for maximum efficiency, which again is to do with heat dissipation.

Personally, based on my understanding on electronics, light physics and photobiology. I would not buy a COB led unless i was planning to DIY one myself.

RosettaStoned has a DIY kit which he assembled himself, its does perform pretty well.
 
The new one is pretty freakin' good too. Unfortunately I burned the leaves on a couple of plants in flower. Had to turn them down quite a bit.
 
The great thing i like about it, is the ability to position the diodes. You may want to think about moving the center ones, towards the outside peremiter. You might find that uniformity is improved and the center hotspot reduced.
 
That's some good info dude thanks! Are you dangerdan? It's funny cause the cobs are way more expensive than the surface mounted LEDs when comparing the same amount of watts per light. I wonder why that is! Haha but I'll stick with my mars hydro 102w panels for now thanks so much again man! What do you think of mars hydro lights? DrPhoton
 
Lol I almost didn't get it when you said "don't look up" haha I bet! One thing I love about cobs is they don't give off purple light you can see the real green of the plant
 
Lmao bro when I look afn.com only thing that comes up is "assembly of first Nations" haha can you give me the full name of the site? Thanks!
 
Here, I'll just copy the link here so it will bring you right to the page.

https://www.autoflower.net/forums/forums/cobshop-net.425/

Yes, they are a little more pricey than some lights, but I know I have saved in the long run using these compared to any other lights. You can check out some of my grows in my signature to see them in action. I've used them since halfway through my first grow.

I grow only autos, generally 4 plants at a time. My average harvest has been 8 O's, but I've had some plants yielded 5 O's by themselves, and my last harvest of only 3 plants got me 14.67oz, one plant off that grow came in at 9.85 oz. I think they are worth it, but to each their own of course.
 
You must log in or register to reply here.
Back
Top