Ok so I added some new LEDs to my fixture it now has 6 Cree royal blue and 6 cree cool whites. After finishing re wiring everything the LEDs are now VERY VERY dim. It is the same if I hook it up to the 6 LEDs or just 1 LED. They are wired from PS to buckpucks to LEDs. Any Ideas?

how many LED's all together and how many buckpucks all together and whats the specs of your PS??

Powersupply is a 24v 6.5a Potrans hooked up to 750 and 1000 dimmable buckpuck each wired to 6 LEDs This system has been working fine for about 6 months with the exception of 2 LEDs which I had ripped off the contact point and I replaced them today, so I am sure everything is hooked up correctly

when you say dim, do you mean you can hold it against your eyeball dim???

yes like I can look straight at them.

Well, if everything was fine until you replaced the LEDs today, then that would be the place I would start looking for trouble. Check for shorts.

I do not think it is a short, when I hook up the buck puck directly to a single LED it is just as dim.

Sounds like dead Buckpucks then. It's possible that something that you inadvertantly did while installing the new LEDs killed the drivers.

Anyway to test that? What are some possible things that could cause a dead buckpuck?

I just dealt with this exact problem. New buckpucks solved it.

No easy ways to check without having everything connected to LEDs. You can try measuring the voltage output. Also try removing the pot to see if it is creating part of the problem (it's been known to happen before).

Causes of a dead puck could be a dead short across the outputs, or that you turned on the driver with no load (no LEDs connected)