PolyU Library
Journal Call no.TD171.5.H6E22
Article TitleEnergy efficient lighting / Consumer Council.
Is Part OfECCO ; no.45, Jun 1995, p.3, illus.
AbstractThe lights we use at home are normally either tungsten or fluorescent lights. The efficiency of the tungsten lights is lower in that it can only transform 5% of its electricity consumption into light energy while the rest is emitted as heat energy. On the contrary, a fluorescent with the same lighting level can save up to 75% of electricity consumption and release less heat.