Electrical Efficiency - Efficiency of Light Bulbs

Efficiency of Light Bulbs

For more details on this topic, see Luminous efficacy.
  • Incandescent light bulb: about 2%.
  • Compact fluorescent lamp: about 7%-9%.
  • White light-emitting diode (LED) about 4%-18%.

Read more about this topic:  Electrical Efficiency

Famous quotes containing the words light bulbs, efficiency, light and/or bulbs:

    We live technologically, with man as the master of nature, man as the engineer, and let anyone who raises his voice against it stop using bridges not built by nature.... No electric light bulbs, no engines, no atomic energy, no calculating machines, no anaesthetics—back to the jungle.
    Max Frisch (1911–1991)

    “Never hug and kiss your children! Mother love may make your children’s infancy unhappy and prevent them from pursuing a career or getting married!” That’s total hogwash, of course. But it shows on extreme example of what state-of-the-art “scientific” parenting was supposed to be in early twentieth-century America. After all, that was the heyday of efficiency experts, time-and-motion studies, and the like.
    Lawrence Kutner (20th century)

    I’ve never been afraid to step out and to reach out and to move out in order to make things happen.
    Victoria Gray, African American civil rights activist. As quoted in This Little Light of Mine, ch. 3, by Hay Mills (1993)

    The wide wonder of Broadway is disconsolate in the daytime; but gaudily glorious at night, with a milling crowd filling sidewalk and roadway, silent, going up, going down, between upstanding banks of brilliant lights, each building braided and embossed with glowing, many-coloured bulbs of man-rayed luminance. A glowing valley of the shadow of life. The strolling crowd went slowly by through the kinematically divine thoroughfare of New York.
    Sean O’Casey (1884–1964)