Unverified80% confidenceTradeoffTime unknown
激光颜色权衡：绿光可见度高但价格贵、耗电快且低温（＜10℃）下亮度会明显衰减甚至熄灭；红光低温稳定、便宜省电，普通投影暗环境下红光完全够用
1
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80%
Confidence
Long-term
Relevance
-
First Seen
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Unverified调光调色功能与显色指数常存在权衡：低价调色灯通过混合冷暖灯珠实现，中间色温段（如3500K）显色指数会下降，追求高显色应选单色温高品质灯80% similarUnverified绿光激光比红光更亮但更费电、发热更大、低温下（0℃以下）绿光二极管易失效或不出光；北方冬季户外或冷库作业需确认工作温度范围79% similarUnverified亮度越高越怕暗场偏灰，LED光源色彩纯但亮度上限低，激光/三色激光亮度高但可能有散斑和暗场发灰问题78% similarUnverified绿色激光可见度约为红色激光的5-8倍，但功耗更高、耗电更快、价格更贵；普通投影幕环境下红色激光已够用，无需为绿激多花钱78% similarUnverified无极调光和分档调光要看清：便宜灯多为3-10档跳变式，在拍摄中微调曝光时会突然过亮/过暗，专业用途选0-100%无级调光77% similar
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