Households switching to low energy lamps will see a "significant" cut in monthly energy consumption, according to Richard Bradley, head of energy efficiency at the International Energy Agency.
Speaking to the Wall Street Journal, Mr Bradley explained the importance of focusing on energy saving bulbs as the first possible place to cut energy consumption.
"If consumers buy compact fluorescent lamps, or CFLs, they can make a significant difference in their energy consumption," said Mr Bradley, adding: "Incandescent bulbs will last about 1,000 hours but a CFL lasts 5,000 hours."
According to the Energy Saving Trust, energy saving bulbs use 80 per cent less electricity.
Environmentalists argue that switching to energy efficient bulbs, such as smilight tubes, will be one of the key ways in which the UK will hit its target of a 50 per cent cut in carbon emissions by 2040 and an 80 per cent cut by 2050.