Unverified80% confidenceDecision RuleTime unknown
LED车灯散热方式决定寿命：带铝制散热片的被动散热比涡轮风扇散热更耐用，风扇是易损件且进灰易坏；封闭大灯内建议选带编织铜带散热或大面积铝鳍的产品
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Unverified选LED灯泡要看实际功率和散热方案，风扇散热型光衰慢但可能异响或进灰故障，铜编织带/铝鳍片被动散热更耐用无噪音，长期使用优先被动散热89% similarUnverified灯珠密度高照度强但发热大、需散热片或风扇，密集LED灯板长期无散热会缩短寿命并可能烤伤近距离叶片，功率＞50W建议选带铝基板散热的85% similarUnverified散热直接决定寿命：金属（铝）散热灯体比全塑料外壳寿命长，同瓦数下塑料外壳筒灯高温衰减快、易早期光衰85% similarUnverified带主动散热风扇的LED总成散热好、光衰慢但风扇是易损件且进灰易异响，无风扇被动散热(铜编织带+鳍片)更耐用但对灯壳空间要求高85% similarUnverified灯珠密度与发热/寿命存在权衡：高密度高亮度灯带发热更大，若安装在铝合金散热槽内寿命更长，长时间高亮使用建议搭配铝槽散热而非直接贴纸粘贴84% similar
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