They use something like 0.07 watts of power - you can work that out into something like 23 cents of electricty per year to run.

Is electricity that expensive in New Zealand?

At .07 watts, it would take you 14,286 hours, or 1.63 years to use one kilowatt-hour of electricity. Therefore, you would use .613 KWH in one year.

If it costs you 23 cents per year to run the light, then .613 KWH costs 23 cents. That works out to 37.5 cents per kilowatt-hour. That is anywhere from three to ten times the going rate for electricity in the U.S.

What does electricity cost per kilowatt-hour in other parts of the world?

tanstaafl.