Rented flat, halogen spots around the place that keep failing. So far we seem to have had a couple where the bulbholder - transformer junction block has melted and a number of transformers fail.
My suspicion is that when the tenants have replaced bulbs they've left the junction/cables too close to the bulb and they've overheated (the idiot who fitted them disposed of the metal brackets intended to prevent this.
There can't be anything wrong in the way they're wired that would cause failure at the transformer or beyond is there? What sort of life to other people get out of 12v transformers?