Unverified83% confidenceDecision RuleTime unknown
带恒流稳压电路的矿灯在电池电量下降时仍保持恒定亮度，直到临界才骤降；无稳压的产品亮度随电量线性衰减，作业后半程照明质量明显下降，选购认准'恒亮/稳压输出'
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83%
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Long-term
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Unverified带恒流稳压电路（regulated output）的头灯全程亮度稳定，无稳压的头灯电量下降后亮度持续变暗，寻路场景务必选恒流稳压款83% similarUnverified充电式（内置电池）护眼台灯不建议作为主力学习灯，电量下降会导致亮度衰减和频闪加剧，长时间固定使用应选插电款83% similarUnverified越野跑/夜跑选头灯优先看恒亮稳压电路，标称流明会随电量下降，无稳压的头灯30分钟后实际亮度可能衰减40%以上，只有恒亮模式能全程维持标称亮度82% similarUnverified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81% similarUnverified供电时长与亮度、灯珠数量存在矛盾：同容量电池下灯珠越多越亮则续航越短，氛围用调低亮度可延长2-3倍续航81% similar
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