I have always been looking for a bulb that could simulate a flickering flame that actually looks real. I thought I would never come across one, until now !! This bulb is absolutely amazing !! The bulb is a bit on the taller size at just over 5″ so make sure it will fit in your fixture. The measurements in the product pictures are pretty accurate. I have had the bulb for a few days now and have tested it in different fixtures to see where it looked best and I have to say that going with a frosted fixture is definitely the best way to go. I also can say that the bulb didn’t over heat or act up with erratic light patterns after being used for some time.The build quality of the bulb is very good and it seems to be quit durable, not that you should be banging it around but it should be good under normal weather conditions etc.Overall I am very pleased with the bulb and highly recommend if its something your looking for as it is the most realistic I have come across for a flame bulb.