I have a strip of 3 downlights in my living room, and I am constantly changing globes.
Usually two of the globes blow in the first day or two of use, but the third globe will last much longer (at least a month, or until we replace the blown globes).
The globes we are using are Mirabella GU10 240V 50W (240V is standard for Australia).
I've heard about other people having this problem - I've searched the web and found plenty of discussions but no definitive answers.
What might be causing the problem and how can I fix it?