After the first bulb in my aroma warmer didn't work, I tried the next one. it worked! Well the light came on but it didn't melt the wax so technically it didn't work either! Then I tried the remaining 8 and none worked. I can accept that 1 out of 10 is wrong, but 9 out of 10 is hard to believe. Also, the packaging was terrible. All 10 bulbs were put together in a little box, I'm shocked they didn't all break. Not sure how this product got such good reviews? Maybe I just got a bad batch. I doubt!