Please help me Diy cob light without driver noob

I am totaly new to all this and on thight budget but I want cob grow...so how can I do that without paying for driver...
Can I buy :

https://www.ebay.co.uk/itm/5x-CITIZEN-CITILED-LED-Chip-3500K-COB-module-CLU048-1212C4-353H6M3-F1-Version-6/222454652440?hash=item33cb549e18:g:QIIAAOSwYXVYz-ky

https://www.ebay.com/itm/CPU-Heatsink-Cooler-Fan-Black-4Pin-For-Intel-Core2-LGA-775-Pentium-Full-Range/262957166598?epid=15006702745&hash=item3d3977f006:g:xhcAAOSwSzRZSkXa

for runing fans :

https://www.ebay.com/itm/EU-1PCS-5V1A-AC-100V-240V-Converter-Adapter-DC-5V-1A-driver-Power-Supply-US-Plug/253007530820?hash=item3ae86c8b44:m:mCXtgeDxLI82js98YfY9Qgg

Ok....so what else do I need ?
How to power them to wall
How to hang them
Are aluminum heatsink better option ?

please help me....
this forum take me from saving money with shit led to this.....I am close..

I am guessing that without driver , individual cob must be take to the main source without parrallele with other cob then its safe...Am I right ?

pollen205 said:

so what else do I need ?

Click to expand...

A driver

so it cant be done without driver...?

So what driver (meanwell modell) do I need if I want do diy cob 50w....

And I m guessing if I want 2 diy cobs I can get either x2 stronger driver or I can diy with 2 driver for 50 w and not parralel

I want to make 3 unit 50w each of this

https://www.ebay.com/itm/5x-CITIZEN-CITILED-LED-Chip-3500K-COB-module-CLU048-1212C4-353H6M3-F1-Version-6/222454652440?hash=item33cb549e18:g:QIIAAOSwYXVYz-ky

so what driver do I need ?

or 4 unit of 50w . 200w total....what is the driver for that

hlg-240w-54b

If you are buying 5 COBs, then why not use all 5?

You can run 5 of them wired parallel to one HLG-185H-36A. ~37 watts each = ~185w total. Better efficiency, and better light dispersal too.

You'll need a heat sink for each COB, or one that is big enough to mount all COBs and dissipate about 100 watts of heat.

I am planning the same build, but I will be using a 1/4" x 3.5" x 2.5 ft. copper bus bar (flat bar) to mount all the COBs - then I will put 2 very good quality heat sinks on top of the copper bus bar. I may not need fans, but I have some. I am using these parts because I have them.

Sorry I didnt see they were the 1212s rhe 185h-36a would be right

Pollen 205. Datasheet is here, for reference: http://ce.citizen.co.jp/lighting_led/dl_data/datasheet/en/COB_5/CLU048-1212C4_P3708_0516.pdf