[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

USB供电灯串需搭配充电宝或常开插座才能持续点亮,适合桌面、书架短距离布置;超过10米的大范围布置优先选插电款(220V转低压),避免电压衰减导致末端偏暗

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