Evil et al...

I built a 12 LED array for a small tank. It consists of 6 Blue and 6 whit LEDS driven by two separate Luxdrive buckpucks - the externally dimmable variety.

During the last week, the white string has started to flicker if not driven at the maximum. I thought it might be the pot, so I replaced that. It did not help. I draw the conclusion that it must be the driver (I cannot find any bad connections). Thoughts?

If the driver is bad, this will be the second defective driver for this build - as I had another that did not drive the LED's to proper brightness. I am beginning to worry about using the Luxdrive buckpucks. After all, if you have to replace $15 drivers on a regular basis - it is not terribly cost effective.