My first DIY Citizen light, wanting to make sure everything is above board.

[DreadCthulhu]

Hello RIU,

I'm just about to start building my first COB light and plan on buying my parts as soon as I get my tax return. Before I drop over a grand for some lighting I just wanted to make sure I was on the right track and hadn't overlooked something. The plan is to build 4 square lights with aluminum angle with 5 cobs on each, one in each corner and one in the middle. Grow space is a 4'x4' area.

My parts list is
20x CLU048 1212 3500k 90CRI Gen 6 = $295
20x Ideal holder, adapter, and Angelina reflectors = $205
20x Moduled Mega 13450-b-hbg = $277
4x Meanwell hlg-240h-c1050a = $283
Grizzly Kyronaut thermal paste = $12

Total = $1072 + shipping and misc materials soooo ~$1300 to have a nice round number.

Should be ~71 degrees celsius for the tj and ~60 for the case temp if my math isn't all fucked. I went with the slightly larger driver so that I wasn't maxing out the possible wattage a hlg-185 could handle. 1020 PPFD according to the DIY cob led calculator.

Does this seem like a reasonable build?

Thanks for your time.

 

[CobKits]

you can use 1400 mA drivers and dim to 1050 as well

or jsut use the hlg185 either as 1050mA or a -36B

there is zero reason not to max out a driver it will still last 70000 hrs if pushed hard

 

[DreadCthulhu]

Hmm, I had originally looked at the 185. Then I was trying to talk to a guy who builds lights on FB about how the 36a type driver works and he got my head all jumble fucked and was talking about not running drivers at 100% load or it'll start a fire. I felt like he was just trying to confuse me though to buy his lights. All this shit made lots of sense until he starts babbling. So there's no harm to run the 185 at full load? The meanwells have a 7yr warranty so you'd think it'd be fine either way.

Is there a big difference in the 36a type vs the 1050 type? I realize they need to be wired differently but like is one better than the other? I thought the 36a type was weird because if one cob burns out then the rest get way more power and have like cascade failure.

Dude told me the way to drive cobs is to have 2 driver connected to each cob? This is where he really lost me. He gave me a handy dandy chart though. Does this bs chart make any sense to you? I hadn't been planning on going that route just not maxing out the driver.