Normally we buy these standard incandescent 40-watt bulbs from B&Q, though elsewhere in the house we've gone energy-saving wherever possible. So I thought I'd try an experiment: buy a range of different ones and keep a log of when they fail. It's not especially scientific, but it keeps me off the streets. Here's the smorgasbord of illuminatory delights I purchased from B&Q yesterday:
A quick run-through from left to right:
- these 28W halogen bulbs at £4.28 each
- the standard 40W incandescent bulbs we've been using already at £1.49 each
- the 25W version of the same thing at 99p each
- the 9W full eco-warrior energy-saving version at £7.98
The way to visualise this is to imagine yourself lying on your back on our kitchen floor with your head pointing roughly north, towards the utility room at the back of the house. I did try to take a (pre-bulb-fitting) photograph from exactly that position, but the ceiling isn't high enough to get it all in. This is the best I could do (same orientation as the diagram):
My intention is to keep a log of which bulbs fail and when and track which ones last the longest. As I say, it's not particularly scientific, because the two banks of bulbs (left and right in the stuck-together photo above) are separately switchable, so some may get more use than others, plus of course some of the individual fittings may be particularly prone to frying bulbs owing to the vagaries of the wiring set-up. But it's the best I can do. I'll probably post individual updates as comments here and then summarise at some later date in a separate post.