Lightbulbs - so you think you know the difference
6 Aug 2010

A new experiment suggests that most New Zealanders can’t tell the difference between the light from convention lightbulbs and the new energy-efficient models – despite thinking that they can.
It is estimated that together, New Zealand households are paying at least $129 million a year more than they need to in electricity charges by using inefficient lightbulbs.
... login or subscribe for full story