Start up surge doesn't use enough power over the light being on normally for the surge to make any significance difference to efficiency.... Mythbusters did an episode on this.
CFL use *more* power than incandescents b/c start-up surge?..
I just heard of this recently that because of the start-up surge a CFL only use less energy than equivalent lumen incandescent if the CFL left on for a certain period of time.
What's up with that?! Anyone know of specific numbers on this? I've looked around a little, but I haven't seen some graph, etc. that illustrates this issue.