I had two bad insert led boards, they send me replacements, no trouble so far. But a few weeks ago from day to day in the end ALL!!! my blue GI leds gone bad and three red ones. Sry to say this if they are from cointaker but I think they were garbage. I changed them with ones I've got from a shop here (superfluxxer) and they look better in my opinion and no problems with these so far.