Mine is the NA Layout Silver Edition. I've only had it for about 2months. When I first noticed that my LEDs were dying, there were only 2 of them. Then it turned to 4. My friend suggested that I should stop leaving my keyboard backlighting on when I'm not using it. So that night I turned them off. Woke up the next morning to find that 6 more died while I had the light off. Tested it again the next night and another 4 died. I haven't tried testing it again as I'm not sure what the results will be because I can't send it in just yet until I get a replacement.