I bought them to replace the only light in my house that needed them. When I received them I heard the glass moving inside the packaging. There was a layer of bubble wrap around them and one was torn. 1/12, this is normal and not necessarily their fault. Of the remaining 11, 5 got disconnected. So, out of 12 bulbs, 6 work for me. Six working ones have a very weak connection between the lamp and the adapter. Also, the amount of light (my fixture occupies 3 of them at the top of a small landing) coming from them is very small. Next time I will either use another supplier or just go to my local big store. .