led cost per hid

The long heatsinks (24") have the advantage of more efficient use of the cooling fans power because the air blows a long distance along the cooling fins. It also has the advantage of a simpler install/wiring. Smaller heatsinks would have the advantage of more adjustability to the canopy. So if you tend to have a very well behaved canopy or you manage your canopy very well, the larger heatsinks should be no problem but if you run 12 different varieties at once and spend very little time on canopy management (like I do) you might appreciate the extra adjustability.

In this case since you can run (3) COBs on 1 driver and you would have (3) COBs on each heatsink, the wiring would be simplified and "elegant" with only 4 wires running to each heatsink, 2 for the fan, 2 for the driver.

I may have misunderstood your question. You could use even longer, 5.88"X48" heatsinks with (6) COBs on each and still have simple wiring. In my case I would lose too much adjustability but again if your canopy is well behaved you could go that route. You could run the fans at 15V and use covers over the fins if necessary. If you used two fans I am not sure how that would work because it would seem like they would be fighting each other but it might work.

POS suggestion of using the 4.23" profile would work. It has a thick baseplate and would allow you to spread the COBs further apart. You could use a 92mm fan to get airflow to tall the fins. (3) COBs at 1.4A would require about 38" of that heatsink. I am not sure if that would spread the COBs too far apart or maybe that spacing would be perfect? I suspect you would need 2 fans on each heatsink and they might fight each other where the airflow meets. Also the fins are so short they might require a cover to keep the air flowing between them the whole way.

I plan on starting perpetual with 1 strain to learn large amounts of as I have always grown mutli strains amd leads to more problems. I will stay w 1 strain to get the besy I can and start again with multi strains. I was thinking running.prob 5ftx6inch wide heat sinks w 6 cobCree CXA3070 3000K AB s 2 meanwell drivers and fans not sure about. So more fans would fight each other I would have to reconsider fan figuration

anzohaze said:

I plan on starting perpetual with 1 strain to learn large amounts of as I have always grown mutli strains amd leads to more problems. I will stay w 1 strain to get the besy I can and start again with multi strains. I was thinking running.prob 5ftx6inch wide heat sinks w 6 cobCree CXA3070 3000K AB s 2 meanwell drivers and fans not sure about. So more fans would fight each other I would have to reconsider fan figuration

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Running a perpetual will definitely get your growing skills in order fast.
I've been doing that for about 4 or 5 years now. (ala Al B. Fuct)

For a 5' long heat sink 4 3070s @1400ma or 6 at 1050ma with 2 fans for redundancy would be the ticket IMHO.

Ya if you are after production, perpetual is where its at. That is where a separate veg room may come in handy as well. To take it a step further, if you have 2 separated flower areas you can have a flip flop to divide your heat by 2 and you get a harvest every month.

Well I have a a spare bedroom for veg decent size closet and a room for flower I have a kid so gotta keep it low key. I always have grown from seed so I eill be learning to clone perpetual etc. I learn once I got it. In summertimes it gets 110 plus w heat index so I will cut my room down to 1 light and prob 6-8 plants depending on veg for heat purposes. But 8f I can take away.the 1000 watts Md getnsomething with alotnoess heat I can prob keep a consistent grow

tenthirty said:

Running a perpetual will definitely get your growing skills in order fast.
I've been doing that for about 4 or 5 years now. (ala Al B. Fuct)

For a 5' long heat sink 4 3070s @1400ma or 6 at 1050ma with 2 fans for redundancy would be the ticket IMHO.

Click to expand...

@tenthirty @SupraSPL this driver can run 6 at 1050ma