How does energy-efficient lighting help the environment?
traditional light bulb that Canadians have been using for more than a century low initial cost but the highest operating costs – only 4 to 6 percent of the electrical energy used by an incandescent bulb is converted into visible light – 94 to 96 percent is wasted as heat very short life 750 to 1000 hours (approximately half a year of operation) dimmable (although often noisy when dimmed) has a colour rendering close to daylight some types produce fewer lumens (less light) – these types are marketed as long-life or energy savers Note: New energy-efficient bulbs will be introduced to meet the 2012 standards for general service lighting.