Requirements for general lighting lamps with high luminous efficiency, long life, environmental protection and other features, the main difference is that the indoor lighting and quality of lighting effects (including color, color product consistency, light emitted and uniformity, the human eye comfort , etc.) have high requirements, and its consumer-oriented groups are more sensitive to the price of the lamps. On the other hand, the luminous efficiency of blue chip advantage to be further enhanced and limited by the white LED packaging technology, the current semiconductor lighting mostly cold white light of high color temperature, combined with product consistency and color is not quite as compared to traditional lighting of man, making the semiconductor lighting outdoor lighting in the current large-scale applications, and in the indoor lighting is just started. Therefore, the limited cost and quality of lighting, semiconductor lighting, outdoor lighting will be the first large-scale application, and then as the technology continues to evolve gradually into the interior lighting field.
A typical application of outdoor lighting is a street lamp, street lighting is an important part of the city, its electricity consumption accounts for much of the lighting.The traditional use of high pressure sodium lamps, high pressure sodium lamps with high luminous efficiency is very low color-rendering index, making the color distortion is very obvious exposure to the object; high pressure sodium color to improve color, but the luminous efficiency, life has the loss; limited by the short-lived, requiring expensive regular maintenance work at height. General high pressure sodium lamp with optical performance is poor, that when the uniformity of road lighting is not good enough, and street lighting to meet the requirements of the general uniformity of high pressure sodium street light poles are used under the illumination than the demand for many of the rated power, resulting in energy waste, therefore, the development of new high efficiency, energy saving, long life, good color rendering index, environment-friendly energy-saving lamps lighting the city has very important significance. Outdoor lighting the huge market demand, driving lights and other power type LED lighting technology advances, costs continue to decline, new products are emerging.
Indoor lighting products are the most commonly used incandescent and fluorescent lamps. The luminous efficiency of incandescent lamps is very low, only a dozen or lumens / watt, while fluorescent lamps contain mercury and other harmful substances, is not conducive to environmental protection. Therefore, the indoor lighting on the demand for efficient and environmentally friendly lighting products more strongly.Although the current luminous efficiency white LED device characteristics and environmental protection has been more than incandescent and fluorescent lamps, but its composition and quality of the lamp lighting effects have not yet formed quickly the advantages of traditional lighting, interior lighting applications in only just begun.
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