I don't think these are any better than cheap compact fluorescents when it comes to bulb ...
I bought 8 of these and 3 failed in one way or another within around 18 months. For the first failure, I contacted Phillips and they sent me a refund check. For the subsequent 2 failures, I made no effort to contact phillips, but I will not be buying any more of these particular bulbs. The advertised long life was very important to me because the lights are high up and it is hard to change the bulbs  (I have to use a tall ladder). I don't think these are any better than cheap compact fluorescents when it comes to bulb life. I am open to the idea that Phillips is a quality company, and I have not given up on the brand, but I have given up on this model.
Rating: 2 stars