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And instead of just using thermo past can i drill and just use machine screw and nut ?

One solid piece of aluminum or lets say 6"x36" x4 with 4 cobs per piece?

Best or cheapest place for pin style heatsinks?

4k-5k ?

Putting them in flower room should i run 2700k or the 3500k ?

And will i lose anything by puting my driver remotley?

In a span of 3x2 wanting 3 to put 3 pieces of aluminum 1/4 in thick by 4in wide 24in long with 2 maybe 3 citizen 1212 3500 k with fan mounted on each piece and 3 pieces attaced to,angle aluminum

In the design process of making my cob hanger is it possible to just use flat aluminum mounted with 12v fans ?

Will i need a power adapter or direct plug into wall ?

I was wanting to,run them at 50w

Could i run 5 citizen 1212 cri90 with this power supply hlg-240h-c700b will also be using arctic cool heatsinks

I am really interested in the cobs. Thinking about just doing a full bar. I would probably go with the citizen. Hlg185h-c-1400b. Im trying to understand the math that goes into selcting your driver just more off a builder not an engineer i can get aluminum sheeting at cost and seen few builds...

Will that splitter work on any 1000 watt digital ballast ?

What would be a good driver to power 5 of the citizen ? Or would i have to only power 3-4 witht he driver ?

was thinking about going with this guy

Looking into the diy seems like everyone has an opinion on what works best see the cree led bit then u look on ebay and there half the price just not brand name or what about the full spectrum cob why not use that instad of the 3k ? I could build one in the matter of a day but would really like...

Looking at the cob lighting but very expensive to get started

Ok so im expanding. Going 4ft deep 6 ft across and 8 tall windering if i should go with 2 600w hps/ mh or 1 1000watt ?? Or shoukd one 600 be suffeciant? It will be sealed with ac andco2

Thank you i apreciate ylur time.

Cutting edge solutions nutrients says 600_1250 ppm. Thats a wide spectram? What would be the better end ? 1250 being better to hit or the lower number or somewere inbetween?