Outdoor Lighting with Energy Saving Light Bulbs

Lighting is the purposeful application of light to achieve some practical effect. Lighting includes use of both artificial light sources such as led lamps and natural light from daylight. Daylighting is the main source of light during daytime in buildings given its low cost. Artificial lighting represents a major component of energy consumption and significant part of all energy consumed in the whole world. Artificial lighting is most commonly provided today by electric lights, but gas lighting, candles, or oil lamps were used in the before few decades, and still are used in emergency. Proper lighting can enhance task performance and save energy bills. Indoor and outdoor lighting is a form of furnishing and a key part of interior design. Lighting can also be an inherent section of landscaping.



Efficient Lighting is classified in a general, localized, or task lighting bases, depending largely on the distribution of the light.

* Task lighting is mainly purposeful and is usually for the purposes such as reading or inspection of materials. For example, reading poor-quality reproductions may require task lighting levels up to 1500 lux and some inspection tasks or surgical operations require even higher levels.

* Accent lighting is mainly decorative, intended to highlight pictures, plants, or other elements of interior design or landscaping.

* General lighting fills in between the two and is intended for general lighting of an area. Indoors, this would be a basic lamp on a table or floor. Outdoors, general lighting for a parking lot may be as low as 10-20 lux (1-2 foot-candles) since pedestrians and motorists already used to the dark will need little light for crossing the area.

In homes and offices from 20 to 50 percent of total energy consumed is due to lighting. Most importantly, for some buildings over 90 percent of lighting energy consumed can be an unnecessary expense through over-illumination. The cost of that lighting can be important. One 100 W light bulb used just 6 hours a day can cost over $25 per year. Thus lighting represents a critical component of energy use today, especially in large office buildings where there are many alternatives for energy utilization in lighting. So use energy saving light bulbs and led bulbs that save the energy and save energy bills.

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