These are great bulbs - 6x the output of a conventional tungsten globe for the same power input, instant start up, almost indistinguishable from tungstens when run side by side and they are 25% off at Countdown until Sunday. About $15 each instead of $20. LED bulbs will almost certainly get cheaper, but at this price this is a good time to jump IMV.
I've bought ten and think I'll get another 20 tomorrow.
http://shop.countdown.co.nz/?gclid=CMew7amG4L8CFY6CvQodbw0A1A#url=/Shop/SearchProducts%3Fsearch%3Dphilips%2Bled