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 efficiency, light and/or bulbs:
“I’ll take fifty percent efficiency to get one hundred percent loyalty.”
—Samuel Goldwyn (1882–1974)
“To recover a buried treasure without having it disappear miraculously in the process, one must be entitled to it, and also be willing—really willing deep in his heart—to share it with the poor and helpless. Buried money, especially silver, gives off a bright glow which comes right up through the earth and can be seen as a dim light on nights when the weather is misty or there is a gentle rain.”
—Administration in the State of Ariz, U.S. public relief program (1935-1943)
“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)