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LED lamps can emit saturated colored light. Disadvantages include spectral limitations resulting from the discrete emission bands of LED phosphors and semiconductor junctions; however, this issue has been mitigated through various spectral-engineering strategies, such as the use of multi-phosphor blends, remote phosphor coatings, and mixed-die architectures (e.g., RGBW or violet-pump systems) designed to broaden the emission spectrum and improve color rendition. Modern evaluation methods--such as the Color

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