Unverified82% confidenceTradeoffTime unknown
亮度流明越高越费电，全亮档常开的免安装灯续航会锐减到标称的1/3甚至更低，长期常亮需求本质上更适合布线电源灯而非充电款
1
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82%
Confidence
Long-term
Relevance
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Unverified流明越高续航越短、发热越大，且高亮下头灯会自动降档保护，追求持久照明反而应选中低流明大容量款89% similarUnverified亮度越高续航越短，两者不可兼得：追求长续航过夜用调至100流明以下，短时高亮照明再切换高档，选带无级调光的灯比固定三档更省电88% similarUnverified亮度可调越精细通常价格越高且电路越复杂，仅作过道地脚灯使用无需追求高端调光，感应式固定亮度款即可87% similarUnverified亮度越高、灯珠越密则单位长度功耗越大，5米高密度灯带常需≥40W电源，若电源功率不足会出现远端亮度衰减(压降现象)、颜色偏差87% similarUnverified无极调光比分档调光更利于精确匹配环境光，但廉价无极调光电路易引入频闪；预算有限时，选无频闪的多档（≥3档）调光优于劣质无极调光86% similar
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