Front fog light bulbs blowing

[Tidoh2016]

As title really.  Fitted new bulbs just over a week ago only had to put the lights on twice and the drivers bulb has blown
Could it just be a bad bulb or something more?
I'm pretty good with a multimeter and such just want someone to point me in the right direction so I'm not spending hours trying to find a fault

[welshpug]

did you touch the glass with your fingers? is the seal leaking?



is it actually foggy and visibility under 100 feet?

[gurj306]

Are you sure it's the bulb blow and not the connection where it plugs into?, I had a problem where at times it used to come on but then later go back off I thought it was blow until I unplugged it and plug it back in and it used to turn on that's how I figured out the fault hope this helps