This bulb has been much complaint. Do not rely on syska bulb. Because I have been using it. It is good to see, but found using the light so that it is less than the others and it is not good quality. I bought the bulb of 12 watts of the market close. When I began to put it in the holder, the cover has come into my hands. But I fit to ignore it. I was on it. In the beginning, its light was right, but 10 to 15 days after its light was dim. I created the idea of ??changing it, I went to the owner and changed it.