LED Retrofit constantly killing royal blue LEDs, and now the whites are flashing

[ducati996]

Its still time to get in on the group order :-)

[rrasco]

What voltage are your drivers? 12 LEDs at around 3.6 forward voltage is 43.2v.

[polarbear]

PM sent.

Its like nanoreefer said. You have to adjust the SVR2 ports in the drivers. I had the same problem and burnt out my UV light. After that the others started to flash when I adjusted the light output. I called Rapid LED and they asked if I adjust the SVR2 ports and I told them no. They advised that this has to be done if not the LED's will continue to burn out.

[jrnannery]

http://www.rapidled.com/biocube-29-d...it-kit-24-led/

That's the link to the kit that I bought. I got the "D" model drivers. Yes, all the wiring was installed by me, is correct, soldered, and proper. I remember setting the SVR2 on the drivers, but I could have screwed that up. It's been awhile since I initially set it up.

Check out the link, and you will see the components, including the heat-sink. I am thinking that the heat-sink may be a little small for 24 LEDs. The heat is actually quite tremendous. Also, the top for the biocube doesn't actually channel air across the heat sink, so the fans aren't as efficient as they should be. I intend to remedy that this weekend. I will reset the SVR2 this weekend on both drivers as well. I'll keep you posted. When I get my new stand built, I will be going with a canopy rather than the stock lid, and so the heat-sink will be more exposed, at which point I can apply a better cooling option.

[rrasco]

From what I can tell, SRV2 sets the current? If you were over driving them, that would do it.

[BBQHILLBILLY]

On my LED kits The heatsink gets hot if you turn it up 100%. Then you get a fan to cool the heatsink. But if you turn it down heatsink shouldnt get hot. jut some thoughtss

[rrasco]

You also really don't want to run the emitters at 100%, which is when they will produce the most heat; obviously.

[Zack]

Are you running them inside the stock hood? I knew a buddy of mine who did that but had a lot of trouble due to heat build up in the confined space.

[jrnannery]

Yeah, it's in the stock hood with upgraded fans, but the path of least (wind) resistance isn't really over the heat sink...it's PAST the heat sink. I want to get the new stand and canopy built badly.

[polarbear]

I have mine in my 14 gallon biocube stock hood with only the one fan that came with the kit running and I have no issues with heat causing issues. I run the LEDs at about 60 or 70%. I really think that there's something with the SVR2. Mine did the same thing your is doing. When the UV light went out the white LEDs started flashing. If I turned down the white lights below a certain % they would stop flashing. When I adjusted the SVR2 they worked fine.