I purchased these bulbs a few days ago for my ceiling fan light. The 1st one lasted 2 days with the light being turned on twice for about an hour. When I turned on for the third time, the light flickered and turned off. I went ahead and installed the 2nd bulb. No chance both bulbs could be flawed. Same thing happened...I estimate that the total life of 2 bulbs was about 3 hours. I could not return because I no longer had the receipt.