Most of my house is lit by incandescent bulbs and I intend to keep them that way. Energy efficient bulbs have a few issues (health and environmental impacts), I won't go into detail, but I prefer not to use LEDs or CFLs. Since manufacturing incandescent lamps is no longer legal in the US, their manufacture is far worse than it used to be. Yes, incandescent bulbs will always burn out faster than LEDs, but two of those bulbs will burn out within maybe 30 minutes, yes minutes, of use. That's all. The other four are fine so far, but we don't use a lot of artificial light - we have a lot of natural light at home that we use. I'm guessing the other four haven't even had 10 hours of use yet, so remains to be seen how long they will last. It's not the only product I've had this problem with. This is the case with almost all incandescent lamps that are now being produced, which is very bad.