I have used them for around 10 years or more also. The first ones worked for a long time but took forever to go from dim to bright in cold weather.
The ones we buy now only last a few weeks and burn out, even with minimal usage. Even though prices have came down a lot, they are not worth the extra cost.
I call bullshit on that.
If you have lights that only last less than a month, and aren't getting refunds, you are just post-like in your intellegence.
Standard CF bulbs here, light quickly, and work for years.
Weeks only? Try it with a newb.
/johnny