Mau5Capades: builds & grow journal

@Growmau5
Oh I always thought that running as close to what it can handle is best? What is THEE best option of driver for me to build 3 of those lights,4 cxb3590s, using one driver on each

Airwalker16 said:

@Growmau5
Oh I always thought that running as close to what it can handle is best? What is THEE best option of driver for me to build 3 of those lights,4 cxb3590s, using one driver on each

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The max they can handle and the most efficient they can run is not the same, but the opposite actully.
Please look at the graph made by a different member on here, and see the current and efficiency changes represented in a percentage. The higher the % the better for heat and power savings.

The less current they receive the more efficient. The efficiency increases will continue till the current isnt enough to light your area anymore.

I have decided, after watching your videos, that I think I am capable of a DIY LED like you made. Especially if it is solderless. Do you have a complete part list for the 4 cob project in the video. I saw a glance of it, but the video was too small to read it all. I am going to price it out, but I think this will be my next project. I was looking at Tasty LED's but if i can do it myself I will. I am going to reread this thread again. Any help with a parts list would be awesome though. Check Ya Later fellow DGC

tharealmclovin said:

I have decided, after watching your videos, that I think I am capable of a DIY LED like you made. Especially if it is solderless. Do you have a complete part list for the 4 cob project in the video. I saw a glance of it, but the video was too small to read it all. I am going to price it out, but I think this will be my next project. I was looking at Tasty LED's but if i can do it myself I will. I am going to reread this thread again. Any help with a parts list would be awesome though. Check Ya Later fellow DGC

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I'm not gromau5 but as for a parts list.
A meanwell hlg 185c1400
4x cxb3590 3500k CD
4x Ideal chip loc cob holders
36" 5.88 heatsink from heatsink usa
A 140mm fan of your choice.
Meanwell Apv 12-12 for fans
Solid 18awg wire for cobs
Arctic silver Tim
Some crimps or something like it and a extension cord for the power.
I've talked to Scotty a few times now and was one of the guys to put him on the cobs a while back. Good luck DGC rep

Go to page 9 bro

thank you...working my way up there again

bassman999 said:

The max they can handle and the most efficient they can run is not the same, but the opposite actully.
Please look at the graph made by a different member on here, and see the current and efficiency changes represented in a percentage. The higher the % the better for heat and power savings.

The less current they receive the more efficient. The efficiency increases will continue till the current isnt enough to light your area anymore.View attachment 3587318

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@bassman999

Which of those numbers tells you the watts being emitted from the COB? As in, how many watts emitted by a 3070 at 1.4 mA? 3590 at 1050 mA? I know it's a simple question.

Ordering COBs, Connectors, and driver now from KingBrite. I am going to start piecing this together

check prices at Cutter 1st seems they got a 10% discount going
i'm reordering

Mary's Confidant said:

@bassman999

Which of those numbers tells you the watts being emitted from the COB? As in, how many watts emitted by a 3070 at 1.4 mA? 3590 at 1050 mA? I know it's a simple question.

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None of them will tell you the watts but they can help you work that out.
I used the cree characterisation tool. http://pct.cree.com/dt/index.html
I got 50w for the Cxb3070 and About 75wats for the cxb3590 72v.

Mary's Confidant said:

@bassman999

Which of those numbers tells you the watts being emitted from the COB? As in, how many watts emitted by a 3070 at 1.4 mA? 3590 at 1050 mA? I know it's a simple question.

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You look at the Vf of the 3590 which for sake of ease can be approximated at 36V
so 36V x 1400mA or 1,4A
36 x 1.4 = 50.4 Watts
Actually the Vf decreases as current decreases though, and actual wattage is vf @1400ma is 34.89V
Attached is a spreadsheet thanks to Supraspl that shows lots of info related to voltage current and efficiency

Can anyone verify that these are the right components? Kingbrite asked a lot of questions. At this price, I may just order a Tasty LED. Unless @Growmau5 wants to sell one of his

Hey Mau, I enjoy your videos a lot. I think it would be cool if you could add another chapter on general safety tips and installations to make the diy as safe as possible, like fuses and whatnot you may be using. I know fire hazards and other safety issues may be what keeps a lot of us diy-to-bes at the bay.
I only bring this up, because you repeatedly mention that the viewer participation would help determine future video content. Also, it is cool that you always show different holders, heatsinks, etc. - not just the stuff that you went with. I think that gives the videos a great and wide approach. Thanks no matter what.

tharealmclovin said:

Can anyone verify that these are the right components? Kingbrite asked a lot of questions. At this price, I may just order a Tasty LED. Unless @Growmau5 wants to sell one of his

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Those components would work together. You could add up to eight 36v chips (~25w each) on that driver if you wanted, it (the driver) would run more efficiently then, but its likely not a big concern. You may not need/want the lenses, specially if you are running 700ma..but thats depends on your space/preference somewhat.

But, for comparison, Tasty has no 700ma option, so you'll have to decide what is needed for your own space/design requirements first.


EDIT: OR you could run four 72v chips on that 700ma for ~50w per chip, which maybe what your after??

Ya you should run them on a 1400 for sure. You'll be at 52W each rather than 23-26...

See now I have no clue what you guys are talking about. lol. I know nothing except what was posted in the videos for noobs. I am trying to light up a 2x4x8 closet. I started looking at Mars Hydro cheapos, then tastyled, then DIY. this is alljiberish to me. I currently run Lush LEDs with success. just want to start a vegging/cucumber closet.

700 & 1400 are the MilliAmps of current running through the driver.Current is a measure of AMOUNT like Volume to make it easy. To get wattage, times forward voltage (36V for cxb3590) by the mA's (1400=1.4, 700=0.7). 36x0.7=25 & 36x1.4=52. It's Ohms law. I was in your shoes a week ago. Keep researching diligently, you'll figure it out.

just a week and you know ohms law? i have been tip toeing around it for years and have no clue. haha

Haha ya. I'm starting to really get the hang of it. Some things of course I don't understand really yet. But most of it.

tharealmclovin said:

just a week and you know ohms law? i have been tip toeing around it for years and have no clue. haha

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Thats funny bro!!!!! Got a laugh out of that one.