Many different types of light fixtures can use LEDs. Light-emitting diodes produce light when electrons move through semiconductor material. LEDs have useful versatility because they can create both white and colored lights.
As you consider lighting in your home, visit the Energy Star website for a comprehensive analysis of LED lighting. You will learn how LED lighting is different from other types of light bulbs as well as a basic overview of the way LED lights produce light. Knowing the pros and cons of LED lighting will help you make an informed decision about the type of lighting you wish to use in your home.
Some LEDs have very low power, making them ideal for use as power buttons and illuminated signs. Other LEDs have enough power to provide illumination for areas with white light. LEDs are components included in the family of Solid-State Lighting. Although this technology is still under development, the U.S. Department of Energy expects that these types of lights will enable significant savings, require fewer power plants to produce them and reduce the demand for electricity by about one-third by 2027.
2.LEDs vs. CFLs and Incandescent
Using LEDs in light fixtures creates more direct and efficient illumination due to the way LEDs produce light. LEDs send light in specific directions and CFLs and incandescent lights produce both heat and light in every direction. If you place CFLs or incandescent bulbs in recessed lighting fixtures, as much as 50 percent of the light will be lost within the fixture without shining out to produce illumination.
The diodes present in LED lighting create efficient light that does not produce heat. By contrast, incandescent light bulbs produce light with heat passing through the filament. CFL light bulbs produce ultraviolet light from an electric current moving through the tube.
When compared to CFLs and incandescent bulbs, LEDs are generally more durable, efficient and versatile for many different lighting needs. LEDs will not break under normal use. The life span of an LED light is over than 60,000 hours, compared to 1,000 hours for a similar incandescent light bulb. One LED light bulb produces the same wattage as 60 incandescent bulbs. The price of one LED light bulb is less than half of 60 incandescent light bulbs. LEDs have the same standard screw design to enable use in standard light fixtures.
While LEDs have qualities that make them beneficial in many situations, there may be limitations or problems when you try to use them for illumination with white light.
Over time, illuminating LEDs with a poor design may begin flickering, changing color, becoming dim and providing uneven light. You can avoid these issues by always choosing LEDs with an Energy Star rating. To achieve an Energy Star rating, LEDs must prove brightness, light output over an extended time, color quality, efficiency, instantaneous lighting, the absence of flickering, and an absence of off-state power draw.
When compared to CFLs and incandescent bulbs, LEDs are generally more durable, efficient and versatile for many different lighting needs.