Well, the lower led on my LK204-25PC has gone dim. Its nearly half the brightness it was originally. I put it away for a while in the box and I take it out and this is how it thanks me. I considered checking if the warranty would cover it, but the cost to ship it to you is crazy. So hmm... what size LEDs are they? Volts?
doh, sorry, missed this... e-mail support@matrixorbital.com and I'll get you a new backlight shipped to you if you want to try and replace it. Or you can ask for a RMA and we will replace it for you...