Or 2 hug 600s would work for 32 1212s right!
Introducing CobKits.com - specializing in DIY and Citizen COBs
Big smo
Well-Known Member
Where's the pictures man. I think I want one just based on the badass factorhave no fear the sphere is here
i did not know this but it actually opens- which is awesome because now instead of just bare chips we will be able to test small assemblies and answer questions like:
-how much does this lens/reflector attenuate overall light?
-what is the absorbance effect of putting this high surface-area black heatsink into a room
-how does a given multi-chip configuration fare
-single diode strips vs cobs
etc
sixstring2112
Well-Known Member
i need something 
sixstring2112
Well-Known Member
hello roberto
VenomGrower6990
Well-Known Member
This is the coupon code.
CobKits
Well-Known Member
i was talking about a yet-to-be special on a couple certain chips, hasnt come together yet, but yeah the code is good
xxxViperxxx
Active Member
Awesome !!!
DrBlaze
Well-Known Member
@CobKitsHey Bobby, I'm looking to order some components in a couple weeks or so, and want to get them from you. I'll be lighting a 4x4 scrog, but will be on a bit of a budget, so I thought that 4x1825 driven at 150w (approx 50% efficient) seemed like a good value proposition. Also, I could add more cobs later on if I wanted more efficiency.
However, I remembered an experiment you did a while back where you wired multiple 1212's together on the same heatsink. So I redid the numbers using 4x1212's per heatsink, running at the same 150w per heatsink, and it looks like they'd produce more par and be fair bit more efficient (55-56%) for not much more in cost.
The only thing is how to cool them. It looks like you have only 1 pin heatsink that will accept a fan, and its not very beefy. Are there any other types you can get in? (A square one would be perfect) Also I'm a little unclear on the best drivers to use... there seem to be a couple different ways this could be wired up and I'd like your opinion on which way you think is best. Also, do you favor using 1 large 600w driver or 2x300w+ drivers?
Thanks
^^ ...please comment when you get a chance
So I've given up on the idea of 4x1212's per heatsink for my 16 cob build. There's just nothing much available that's roomy enough and is going to cool over 150w. Its cheaper to just go with individual cheaper sinks.
I've been going back and reading some older posts on the different flavors of the meanwell 320's and am a little unsure how to drive these. I'd like to have the option of running as close to 400w (per 8 cobs) as possible, so it looks like I'd want 2x1400ma (rather than the cv drivers). I can't seem to find definitive info on where these top out. Is there one version that you know for sure puts out more watts than the rest?
I guess if need be I could go with 3 smaller drivers, but that also means one of them would be driving an extra 1212.
I'm going to be making an order in the next week or so, but I need to figure out this driver thing first.
Last edited:
Similar threads
