I would like to know if your mentioned w5w bulb bunnings means w5w bulb burning out.

If yes, I suggest you’d better check if there is short circuit or wrong electric current connecting.

Because 12v w5w bulb is only 5w and life time will be very long.

All of our w5w bulb are all using top materials.

So the life time of our w5w bulb is at least 1200 hours.

Most of our 12v w5w bulbs are all sold to famous brands.

I will show you pictures of w5w bulb as below and you can check them.

Welcome all people come to talk with w5w bulb bunnings at any time.