In the current situation in all sectors of the lighting of the attention IRC has been more and more. Especially the indoor environment, it has a strong demand for LED color rendering (CRI). As a low-pressure sodium lamp is in the vicinity of 200lm / W in luminous efficiency, but only a monochromatic yellow light for street lighting was used and very few other occasions. As the U.S. Department of Energy (DOE) is used for interior lighting LED lights color rendering index of 70 home (Aug.2007), until the recent availability of ≥ 80 (Dec. 2009).
Choice of light quality, high output and high color rendering are the key to the LED. Shanghai Lighting Association President believes that white is the high photosynthetic efficiency and high color rendering index and the satisfaction of the lighting conditions or the operation of the lighting, the best is white. Endless disputes arising out of this LED light source and the traditional competitive market for replacement of the lighting problems and decisive force, Director also has its own unique perspective. He thinks of the current station, high light output LED means that the emission yield is higher than the traditional source of light is.Since the conventional light sources at different times that the role, if too we compare with them, we have the high efficiency light source light can traditional set as the reference, then put the lines to compare in the shield, is that the right way. DOE current document, it will be incandescent and fluorescent lamps MR16 comparison; As for IRC, a number of different occasions, the color rendering index is a human value provided, not on certain occasions made available, like outdoor lighting, few had made the decision to detail, there is much demand for indoor lighting, such as the environment is at home, the CRI above 80, it became very popular present.
LED lighting in industry trends clearly owned by a high luminous efficacy and color rendering index showed the interior lighting industry a pretty good performance and strong growth. Therefore, if you have a LED light effect, you must have is the color rendering index of concern, not just talk CRI light yield the whole meaning.
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