Indoor lighting becomes the future main battlefield of LED lighting

General lighting requires lamps with high luminous efficiency, long life, and environmental protection. The main difference is the effect and quality of the indoor lighting source (including color rendering, color consistency, exit and uniformity of the light source, and human eye comfort Sex, etc.) have higher requirements and the consumer groups they face are more sensitive to the price of lamps. On the other hand, the advantages of the blue-light chip's luminous efficiency need to be further improved and limited by the white LED packaging technology. The current semiconductor lighting fixtures are mostly high color temperature cool white light, and the color product consistency is not as good as traditional lighting. As a result, semiconductor lighting fixtures are currently used in large-scale outdoor lighting applications, but they have only just started in indoor lighting. Therefore, limited by the cost and lighting quality, semiconductor lighting will take the lead in large-scale outdoor lighting applications, and then gradually enter the field of indoor lighting as the technology continues to develop.

A typical application of outdoor lighting is street lighting, which is an important part of urban lighting, and its power consumption accounts for a large part of the lighting power. The traditional street lamp adopts high pressure sodium lamp, and the high luminous efficiency high pressure sodium lamp has low color rendering index, which makes the color distortion of the irradiated object very obvious; the high color rendering high pressure sodium lamp has improved color rendering, but its luminous efficiency and life are Loss; limited by its short life, so frequent high maintenance operations are often required. General high pressure sodium lamp light distribution performance is poor, which means that the road lighting uniformity is not good enough, and in order to meet the road lighting requirements for uniformity of the general high pressure sodium lamp street lamp uses more than the lamp pole illumination demand much more rated power, As a result, energy is wasted. Therefore, the development of new-type, high-efficiency, energy-saving, long-life, better color rendering index, and environment-friendly streetlights is of great significance for energy conservation in urban lighting. The huge market demand in the field of outdoor lighting has driven the continuous improvement of the technical level of power-type LED street lamps and other lamps, and the cost has been continuously declining. New products have been emerging.

The most common products for indoor lighting are incandescent and fluorescent lamps. The luminous efficiency of incandescent lamps is extremely low, only a dozen lumens/watt, and fluorescent lamps contain harmful substances such as mercury, which is not conducive to environmental protection. Therefore, the demand for highly efficient and environmentally friendly lighting products in indoor lighting is even stronger. Although the current white LED devices have exceeded the incandescent and fluorescent lamps in terms of luminous efficiency and environmental protection, the lighting effects and quality of the lamps formed by them have not yet formed the advantages of traditional lighting sources, and their application in indoor lighting just began.