Maximum current for Cree x p e

Airwalker16

Well-Known Member
Hey guys in the new build I'll be using some PCB that have 15 various red blue and white xpe soldered to it and the current they are being run at is about 700 MA. But I will be upgrading the heatsink to a round 144 pin sink now and was curious if I'd have any issues using a 240 - 2100 and splitting it to give these led 1050 Ma?
I've done a bit of research online but can't really find much definitive answers to this question. But it seems like with proper cooling people have hit these hard with well over 2 amps of current but I'm just trying to be safe. I would obviously dim the driver before turning it on but what I have any problems giving it the full 1050?
 

Airwalker16

Well-Known Member
what does datasheet say? with proper cooling you should be able to hit max data sheet current
I can't find any clear info from it to feel confident enough to use this other driver..
This is why I started this thread to see if anybody had any real world, first hand experience I could hear about.
 

Viceman666

Well-Known Member
From the datasheet seems to show at 1amp max current im sure at 1.05A you will be good.. keep in mind you will need to know how many diodes are in series/ parallel on the pcb board so you know exactly how much current is going to each diodes..
 

CobKits

Well-Known Member
and was curious if I'd have any issues using a 240 - 2100 and splitting it to give these led 1050 Ma?
potentially

in parallel you might see voltage +/- a few percent on either side. Which by itself is a bad idea since your design already esceeds max current and if one strip drops out (doesnt need to be bad diodes, loose wiring is enough), there is nothing from preventing your other strip from seeing 2.1A which will kill it immediately. i would select a proper driver that cant go over 1050 mA to be safe. 1050 is a very common current there are lots of options.
 

Airwalker16

Well-Known Member
potentially

in parallel you might see voltage +/- a few percent on either side. Which by itself is a bad idea since your design already esceeds max current and if one strip drops out (doesnt need to be bad diodes, loose wiring is enough), there is nothing from preventing your other strip from seeing 2.1A which will kill it immediately. i would select a proper driver that cant go over 1050 mA to be safe. 1050 is a very common current there are lots of options.
Ya but not for 200 watts for very cheap besides and hlg lrs or elg.
I just feel like that If these can handle the extra current, then I should make them brighter. It's only going to help.
 

Airwalker16

Well-Known Member
The only info I got from ecosunlite was that the pcbs are 24-36v because of the varying fV of the different colors. But do you think I could run them on an LRS-200-36? They'd have to be in parallel of course. Or do you fear the same fate for the diodes could happen just the same with that driver? CC only? Series wiring.
 

Airwalker16

Well-Known Member
The drivers they're on currently split the current to each of them for 700MA. They just soldered 2 wires off the circuit board. They've been holding strong this whole time luckily and haven't had all 1400MA thrown into one PCB.
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