Unverified85% confidenceTradeoffTime unknown
亮度与散热/寿命的矛盾：小体积高流明头灯持续满功率会过热强制降档，追求持久稳定输出反而应选亮度适中、有金属散热的机型
1
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85%
Confidence
Long-term
Relevance
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Unverified亮度高与寿命、发热存在权衡：同尺寸灯泡追求超高流明会牺牲散热余量，密闭或吸顶场景宁选略低功率保证寿命，避免灯珠光衰快速89% similarUnverified功率越高光照越强但发热越大，无散热片或无风扇的高功率（＞50W）灯具易高温衰减寿命，密集摆放灯珠的贴片灯板需带铝基板散热85% similarUnverified亮度越高越费电且发热越大，一体式灯珠机型高亮档连续使用易过热降频；需要长续航就接受牺牲峰值亮度84% similarUnverified亮度越高续航越短且发热越大，持续高亮运行的头灯会因过热自动降档（热降频），单纯看峰值流明无意义，要看能持续稳定输出的亮度84% similarUnverified亮度越高（流明越大）的智能灯泡功耗和发热越大，而智能驱动电路怕热，高温会缩短寿命，密闭灯罩内不建议塞高功率智能灯泡84% similar
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