Lm561c 2ft strips design *help*

[robrohh]

can i get some info on how to work with a constant voltage driver ?
how is the math worked around that ?

[LEDG]

Here's an article to read; it's aimed towards COB users but all the principles are the exact same. Just sub in the word "strips" every time you see "COB"

http://ledgardener.com/choose-cv-driver-for-cobs/

[robrohh]

So i did this basic math.
Two cv drivers hlg 480 24a
Would be needed to power them .
Enough juice to pump about 800 plus or minus to the strips if wired in parallel.
I was planning to use these strips

https://www.digikey.com/product-detail/ ... ND/5958895


Wondering if i should mix the spectrum or leave it as is.

Now relating to wiring everything will be in parallel. That i woll have to figure out .

I guess i would say im copying TEDS build but my problem is i dont like to copy . What fun is it if i dont understand what im building nor is it a bit unique to me lol.

Please correct anything that is off .
Im glad im geting help.

So 16 strips per 3x3 table .
It is . Honestly i cant wait to get started

20170907_011322.jpg (2.58 MiB) Viewed 1629 times

[Ted]

So i did this basic math.
Two cv drivers hlg 480 24a
Would be needed to power them .
Enough juice to pump about 800 plus or minus to the strips if wired in parallel.
I was planning to use these strips

https://www.digikey.com/product-detail/ ... ND/5958895


Wondering if i should mix the spectrum or leave it as is.

Now relating to wiring everything will be in parallel. That i woll have to figure out .

I guess i would say im copying TEDS build but my problem is i dont like to copy . What fun is it if i dont understand what im building nor is it a bit unique to me lol.

Please correct anything that is off .
Im glad im geting help.

So 16 strips per 3x3 table .
It is . Honestly i cant wait to get started



20170907_011322.jpg

Imitation is the sincerest form for flattery!

The strips youre looking at on digikey are the M series, which use the older LM561B+ diode. The LM561C diode is in the F and H series and looks to have about 10% greater efficacy compared to the LM561B+

Regarding mixing spectrums for the LM561C, to me, it look like the only difference between the different colors is the inclusion or exclusion of the blue light peak.

Capture.PNG (132.54 KiB) Viewed 1622 times

I guess it really depends on how much blue light vs red light do you want? I dont know if you need to mix multiple colors to achieve that result.

How are you going to build your L shaped fixture with two drivers?Would divide the strips up 50/50 between the drivers?

[robrohh]

Gotcha... because they are a bit cheaper then the others . I dont understand why its classfied "lt-lm561c g2" fake advertisement lol .. regardless im using that one for the reason of cost and so on .
And i was thinking
3 fixtures with quick disconnects or some sort of plug to complete the circuit . .
Now thats where it could get a bit creative .

[Ted]

Gotcha... because they are a bit cheaper then the others . I dont understand why its classfied "lt-lm561c g2" fake advertisement lol .. regardless im using that one for the reason of cost and so on .
And i was thinking
3 fixtures with quick disconnects or some sort of plug to complete the circuit . .
Now thats where it could get a bit creative .

Here are the two foot LM561C series strips in 3000k for a little bit cheaper actually than the M series youre looking at: https://www.digikey.com/product-detail/ ... ND/6149745

$9.30 a strip for the 3000k and 3500k versions if you buy more than 25 of them vs $9.40 a strip for the 4000K M series you were looking at. The 400K LM561C strips are a little pricier on Digikey, I bought mine on Arron for $11 bucks a strip, but Arrow does free shipping, which Digikey does not.

The data sheets say the M series has higher output, but they are running almost twice as much current.

Either way there is not too much of a difference between the two, if you go with either you should be fine.

I'm curious to see how you'd integrate 2 drivers into three fixtures, I'm sure it would be fun though.

[robrohh]

This is how i planned to do it . Just integrate the quick disconnects to the middle fixture .

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20170907_163048.jpg (3.53 MiB) Viewed 1608 times

[Ted]

This is how i planned to do it . Just integrate the quick disconnects to the middle fixture .


20170907_163043.jpg20170907_163048.jpg

So two drivers on the same circuit?

[robrohh]

If possible . I was thinking like this .
Each driver having its own power source .

20170907_164549.jpg (2.82 MiB) Viewed 1605 times

Now the question is will the wiring allow this .

[LEDG]

What if you skipped the connection between them and having to split the middle board up by just going with 1 driver per 16 strips?