Series/parallel for cree XP-E

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Since I have some TRP 40w drivers, I figured I could use them for some cree XP-E photo red diodes salvaged from an old light. The driver is 7-22v, 1820mA constant current.

The cree XP-E is about 200-1000mA, 2.1-2.5v. Maybe 2.4v at 910mA , whatever. Is this type of wiring correct?
Thanks



Hope the drawing is good enough

edit: Actually, I just realized I should use like 8 diodes per series connection, with a maximum of 22v, to utilize the driver's potential better.

[Shimbob]

You're on the right track, that wiring should work. How many of these diodes do you have? Adding a third parallel strand would reduce the current further and help improve the efficiency & lifespan of the diodes, and spread too.

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You're on the right track, that wiring should work. How many of these diodes do you have? Adding a third parallel strand would reduce the current further and help improve the efficiency & lifespan of the diodes, and spread too.

Thanks very much for having a look!

I have about 20, give or take a few, so I will do some messing around and see what works nicely. There's also some 730nm diodes that I could add for the heck of it. I will definitely take your suggestion to heart because these diodes burn out fast on the Chinese builds. I assume they run them at or near the max.

As long as this kind of wiring is sound, I'm good to go! Just having fun with it, there's no real goal here.