Unverified85% confidenceDecision RuleTime unknown
海水激活式（water-activated）电池灯遇水自动点亮，适合安装在救生衣上应对落水昏迷场景；手动开关灯适合主动求救，两者应根据是否需要无意识激活来选择
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85%
Confidence
Long-term
Relevance
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Unverified海水激活式（water-activated）电池灯落水自动点亮，无需手动开启，适合失去意识或双手受伤场景；但存放期间受潮或雨水可能误触发，需注意密封储存91% similarUnverified带磁吸底座或可挂扣的求救灯能在车辆抛锚、帐篷、救生衣上固定发光，解放双手；水上求救灯常配挂绳和浮力设计防止落水丢失73% similarUnverified无缺水自动断电保护的机型不建议整夜或无人看管使用，超声波干烧会烧坏雾化片，选购需确认有缺水断电功能71% similarUnverified带断水自动断电保护的机型可避免无水干烧损坏，选购时应确认此功能，尤其是无人值守整夜使用场景71% similar
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