I've had these bulbs for 9 months now. They started out great, just the color and temperature I was looking for to replace my 40 watt incandescent bulbs. I only needed 2 for my device. After 6 months one of them started to flicker. I figured it would be okay, I had a spare. After 3 months this also started to flicker. Unfortunately I've tried several different brands that advertised the same color/temperature/wattage and none of them lived up to what I was looking for and neither did this one. So I went back to buy another set of 3. I hope I don't encounter frustrating flickering again.