This is by way of being a general public service announcement. Don't buy Ikea energy saving light bulbs. They're crap.
I bought a job lot of the things from Ikea last year. Let me see - nine of 'em in total. These would be the awesome bulbs that last for ten years, remember. Out of those nine, five have now failed entirely.
They're also not terribly bright and take ages to warm up. When the Ikea ones started failing I bought some Philips ones from London Drugs instead. They're brighter, whiter, warm up faster, and not a one of them has failed yet.
So, yeah, screw Ikea, go Philips. PSA ends!