Seoul Semiconductor Unveils Warm White Acriche of 42lm/W

Apr 24, 2007 11:43 Nikkei Electronics Asia

Seoul Semiconductor of Korea has announced that Acriche, claimed to be the world's first semiconductor lighting source for AC power outlets, can now achieve warm white of near-daylight quality, making it suitable for general and indoor lighting applications. The warm white Acriche features 42lm/W based on light source.

Actual system efficiency -- which takes into account luminous efficacy, ballast efficiency and luminaire efficiency -- for the warm white Acriche is 39.9lm/W. This is higher than 7.5lm/W for incandescent lamps and 30.6lm/W for compact fluorescents.

Warm white Acriche is a suitable replacement for DC-LED lighting. Compared to conventional warm white DC LED which has a luminous efficacy of nearly 35 lm/W, the warm white Acriche at 42 lm/W is 20% more efficient. Warm white Acriche can also produce a brighter lighting environment without the need of a converter or ballast.

The company has also released warm white Acriche with a luminous efficacy of 33lm/W which has a color rendering index (CRI) rating of 90. The CRI measures the ability of a light source to produce vibrant colors in objects. A CRI rating of 100 suggests that the light source is equivalent to daylight, while a low CRI rating near 0 suggests that colors will appear unnatural under that particular light source.

Acriche warm white's high CRI ratings and superior color rendering capabilities make it a suitable solution for environments that demand vibrant and accurate lighting, such as museums, luxury hotels, art galleries, show rooms and displays.

For many years, the ability to produce a warm white semiconductor lighting source that can also offer a high quality CRI rating had appeared illusive. Today, that hurdle has been successfully negotiated.

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