Hi Teak,
I don't know whether this will help as I am not sure whether you are using the small bulbs which come with a transformer, or whether you are using ordinary light bulbs but I have a fan/light on my lounge ceiling and this used to go through bulbs like there was no tomorrow. I assumed that there was a fault on the fitting so I returned it but the same thing happened and I spent a fortune on bulbs, that is until I decided to change the bulbs for the low energy ones. I don't particulary like these bulbs as they don't give out the same lighting unless you purchase the new ones which are a lot more expensive. I have had these bulbs in my light for over 10 months now whereas I was replacing them every couple of weeks before this. Regards, John