mix LEDs with different power requirements on the same driver?

graying.geek

Well-Known Member
I'd like to add some 660nm and 730nm diodes to my DIY 4000K strip light to give my plants a boost from the Emerson Effect, and it would be most convenient to put the diodes in series on the same driver, but the 660 diodes require 2.4-2.6V at 350ma, the 730 are 3.2-3.6V at 350ma. As long as the driver provides sufficient voltage for all of the diodes, and the provided current matches, will the voltage mismatch cause issues?
 

grotbags

Well-Known Member
I'd like to add some 660nm and 730nm diodes to my DIY 4000K strip light to give my plants a boost from the Emerson Effect, and it would be most convenient to put the diodes in series on the same driver, but the 660 diodes require 2.4-2.6V at 350ma, the 730 are 3.2-3.6V at 350ma. As long as the driver provides sufficient voltage for all of the diodes, and the provided current matches, will the voltage mismatch cause issues?
wired in series with a constant current driver the voltages wont be an issue. how many diodes are you wanting ro run?, and why only 350ma max?.
 

graying.geek

Well-Known Member
wired in series with a constant current driver the voltages wont be an issue.
Thanx. Makes sense.

: said:
how many diodes are you wanting ro run?, and why only 350ma max?.
I'm currently running 400W of 4000'K strips, and from what I've read, I should add ~25W of 660 and 6W of 730. Also considering adding some 400nm to inhibit some to the stretch the far red will precipitate, but sure how much. I'm open to knowledgeable advice re: all of this, of course. Using 1W diodes make using the blank PCBs I have on hand to mount the diodes a lot more straightforward to get the right wattage.
 
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