Introducing CobKits.com - specializing in DIY and Citizen COBs
Shua1991
Well-Known Member
Hey, I sent an email to sales@cobkits.com, it's in regards to 2 led setups for 4x4 grow spaces, I believe you previously mentioned you could give me two kits to replace my 600w hps's. I sent it on the 26th
Like in how many month? Thanks
OLD MOTHER SATIVA
Well-Known Member
cobs w no lens/reflectors as close as you can go [close] make insane dense fat colas
I think it's good to have the plants stretch a bit first, then bring the light closer for the dense buds. Trying that on my next grow.
sureshot138
Well-Known Member
8 citi 1216s at 30watts ea. Or 4 qb's at 60 watts ea. For a 2x4. What do you think?
The Dawg
Well-Known Member
How About Monopoly Money??
earthling420
Well-Known Member
I like to let them stretch for the light, like they want it. And ill give em as much as they like until it starts having negative effects on them.
earthling420
Well-Known Member
Upon returning after my hiatus, i stumbled upon you first cobkits. Read the first 9 pages. Well done withstanding the test of time so far. And seems you've been improving your business the whole time. Right on! Was cool to read.
When i left. Cobs were just coming on to the scene. I was very interested. I was following grenegenes and his business and grows.
Now, im lookin to possibly build a cob light finally like i intended. Unless the option of buying one made is available and considerable.
Already an led fan. Started out with leds. Never looked back.
The cob would go into a 2x4 tent. I have some 2x2.5 i could maybe use cobs in too, but i already have some old A51 panels.
Now my main inquiry is roughly how much money, and time (again, roughly...) would it take to build a sufficient panel for a 2x4?
When i left. Cobs were just coming on to the scene. I was very interested. I was following grenegenes and his business and grows.
Now, im lookin to possibly build a cob light finally like i intended. Unless the option of buying one made is available and considerable.
Already an led fan. Started out with leds. Never looked back.
The cob would go into a 2x4 tent. I have some 2x2.5 i could maybe use cobs in too, but i already have some old A51 panels.
Now my main inquiry is roughly how much money, and time (again, roughly...) would it take to build a sufficient panel for a 2x4?
Lots of variables:
Efficiency
Cost
Time
Something really efficient would cost more and take more time. More efficiency, more COBs driven at lower amps
You could have 2 COBs cover that I'm sure. Wouldn't be as efficient due to needing higher amps, but would be cheaper.
I spent about $350 on 6 COBs and the drivers and framing.
You could probably get something done for about $200 if you didn't care about efficiency
Anybody feel free to correct me
earthling420
Well-Known Member
Thanks for your insight. You're right. First i need to determine if i want drive them hard or soft. Im not sure i know all the pros and cons though besides, hard=cheaper up front, less work to do, shorter lifespan, not sure how plants would be affected.
Soft=more expensive up front, more work, longer lifespan, again, not sure about the plants.
And i guess electricity consumption is a factor. Not sure which option would use more though. Soft driving with more cobs, or hard driving with less cobs.
If I was to do it over, I'd use 2 or 3 COBs and drive them a tad harder.
COBs are cheap to replace. It's the drivers, heatsinks, and shipping of those 2 that are expensive upfront.
Expect COBs to last a long time regardless. Long as they're cooled properly, probably negligible.
I went with 6 CXM22 3000Ks. The 3500Ks I wanted weren't in stock. I think these are still considered great bang for buck if I'm not mistaken
jonny c 2.0
Well-Known Member
All the all the plants in the video where purchase from Cobb kits.com besides 1/2 cup light that was not purchased chips from Cobb kitshttps://youtu.be/tUw_uERIym4
jonny c 2.0
Well-Known Member
Thank u cobkits .com
guy_incognito251
Well-Known Member
If you turn the Io adjust pot all the way up that driver can output up to 1.28A (at least that is what the meanwell test report says: http://www.meanwell.com/webapp/product/search.aspx?prod=hlg-240h-c&pdf=SExHLTI0MEgtQzEwNTAtcnB0LnBkZg==&a=2) so that may be why you see 280W at the wall?