Hello, I have a quick question regarding the Meanwell drivers. I have one of the ELN-60-48D powering a string of 15 Cree XRE leds. It has internal adjustments that set to their max output drives the string 53.5 V at an overall current of 800MA. I have tested this over a period of several hours, and the driver does not appear to overheat. Everywhere I have read suggests 13 leds per string. Will running the strings this way cause damage to the drivers?
DIY LEDs - The write-up
- Thread starter JohnL
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Yep, me too. 
Just waiting for parts is driving me nuts.
Only thing I am waiting for is the LEDs and Drivers.
My plan is to start the thread with the parts needed.
Parts list.
How much they cost.
Where I brought them.
Describing what they are, specs sheets, fun stuff like that.
Just waiting for parts is driving me nuts.
Only thing I am waiting for is the LEDs and Drivers.
My plan is to start the thread with the parts needed.
Parts list.
How much they cost.
Where I brought them.
Describing what they are, specs sheets, fun stuff like that.
der_wille_zur_macht
Team RC
Did you mean to post a link? I don't see what you are trying to reference.
Jarob
New member
I just bought a hex tank with a 26"x26"x25" footprint and will be lighting it with a 20"x20" DIY LED system. How many LEDS/how far spaced apart do you guys think would be a good powered system? I know im being very vague, but thats where I want you guys to fill in with your opinions and options you have all thought up, im not as smart as yall! Thanks in advance
-Jarob
p.s. I have been following this thread for sometime... AMAZING WORK GUYS!!!!
-Jarob
p.s. I have been following this thread for sometime... AMAZING WORK GUYS!!!!
james3370
Premium Member
<a href=showthread.php?s=&postid=15243468#post15243468 target=_blank>Originally posted</a> by Jarob
I just bought a hex tank with a 26"x26"x25" footprint and will be lighting it with a 20"x20" DIY LED system. How many LEDS/how far spaced apart do you guys think would be a good powered system? I know im being very vague, but thats where I want you guys to fill in with your opinions and options you have all thought up, im not as smart as yall! Thanks in advance
-Jarob
p.s. I have been following this thread for sometime... AMAZING WORK GUYS!!!!
the concensus on nanoreef (which has alot of people running these) is 2" spacing & optics if more than 16 or so deep
james3370
Premium Member
maybe somebody can answer this.......
the buckpucks have a maximum input voltage of 32v, but i can't find 32v power supplies.....24 & 28, but the next size seems to be 36 (too expensive) or 48
i'm thinking (9) leds @ 3.7v forward voltage = 29.6v so that puts me under the 32v max input of the buckpuck, so if i were to use a 48v power supply, if the leds only pull 30-32v would the 48v power supply fry the buckpuck????
if so, is there any easy way to limit the input??
the buckpucks have a maximum input voltage of 32v, but i can't find 32v power supplies.....24 & 28, but the next size seems to be 36 (too expensive) or 48
i'm thinking (9) leds @ 3.7v forward voltage = 29.6v so that puts me under the 32v max input of the buckpuck, so if i were to use a 48v power supply, if the leds only pull 30-32v would the 48v power supply fry the buckpuck????
if so, is there any easy way to limit the input??
james3370
Premium Member
so i guess that means for (18) leds, i'll have to go w/ (3) pucks of (6) leds each.
but that does bring the voltage down to under 24v, so maybe i'll do 1 string of 3 blue & 3 white on a seperate power supply & use those for a sunrise/midday/sunset & the remaining 2 strings on a different supply for midday
yupgopotty
New member
I know the group buy was for a different model but can anyone share their thoughts on this meanwell driver if I want to power 12 CREE XR-E's @700ma? LPC-35-700
http://www.meanwell.com/search/lpc-35/default.htm
http://www.meanwell.com/search/lpc-35/default.htm
yupgopotty
New member
Thanks for the welcome and information kcress. It seems this model is cheaper than some of the other meanwells and the buckpucks, so I think I'm gonna go for this one (~$26 for 12 LEDs).
der_wille_zur_macht
Team RC
Just curious, where are you seeing them for $26? I did a quick google search and the first few vendors I clicked on were much more than that (like $35 - $40).
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