Researchers have demonstrated white, organic light-emitting diode (OLED) sources with the same efficiency as fluorescent light bulbs.
研究人员展示了白色有机发光二极管跟荧光灯泡有一样的效率。
For general lighting, people need more white light sources.
对于一般照明而言，人们更需要白色的光源。
These light sources also produce a blue-white light that is safer because it is closer to natural daylight.
这些光源也产生蓝白光是安全，因为它更接近自然光。
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