Heal the World

Topics: Incandescent light bulb, Lighting, Energy conservation Pages: 2 (615 words) Published: August 20, 2013
Each of us lives on big earth family, the earth provides us wealthy resources and energy .Nowadays,with rapid development of human science and technology, people crazy grab the earth's resources, especially after the second industrial revolution accelerated the lighting industry and undoubtedly exacerbate the greenhouse effect and exhausted the earth energy. people crazy mining coal to generate electricity, harmful gas and dust and coal combustion has aggravated the earth's atmospheric pollution, incandescent invented by Edison let us get rid of the fear at dark night, at the same time the bulb surface containing a small amount of mercury and other toxic metals cause two pollution of water and soil and atmosphere, human have been aware that the earth's environment is more and more limit. Low carbon environmental protection, energy saving and emission reduction has been mentioned on the agenda.

As the fourth generation of lighting appliance LED floodlight with energy saving and environmental protection have made an outstanding contribution, as we all know, the common incandescent lamp is on AC power, because the AC current frequency leads to frequent changes in current big loss, light source and transformation is flashing,, LED floodlights can solve the problem very well, because he and all the LED lighting, adopts low voltage and constant current drive, convert the alternating current into direct current, and use LED semiconductor light-emitting , not like incandescent tungsten filament consume a large amount of heat energy, convert electric energy into almost 100%light energy .Moreover LED flood light emitted light is not flashing, not to stimulate the human eye, it also ensures that the light is soft, light source incandescent and energy-saving lamps general issued by infrared and ultraviolet, cause light pollution, brings pollution to earth environment and people's lives, but LED floodlights’ semiconductor light without the infrared and ultraviolet and no...
Continue Reading

Please join StudyMode to read the full document

You May Also Find These Documents Helpful

  • Heal the World Essay
  • Heal the World Essay
  • Heal the World Research Paper
  • into the world Essay
  • Heal the World Song Analysis Essay
  • Essay on Hello World
  • World Religions Essay
  • Essay about world vision

Become a StudyMode Member

Sign Up - It's Free