First of all it was a trial, so I exchanged 8 ceiling lights in some rooms (not all rooms). Although it is still about a week, there is no problem at the moment. As long as it takes a certain amount of time before it gets brighter (a few minutes), as expected, the size (bulky protruding) is also expected as expected as expected (although it is not cheapest but the price is reasonably cheap), it is a lifetime. Since it expects about 5 years if it is 6000 hours, it will be several years to know the result. There are no particular complaints especially for improvement, but it is the biggest thing if it is a little smaller. Then Kriton bulb replaces it.
I wanted to led but 60 w was too expensive so I turned to a fluorescent light which consumed only twice the power consumption. bright. The stain on the wall is conspicuous and it can not be helped. I decided to think again when led became affordable.