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开关开了很久灯才亮怎么回事
更新时间: 2021-02-06 07:23:10  

1、如果LED灯珠没有问题且开关开了很久灯才亮,有可能是电源电压过低。

2、要么就是灯管老化,导致启动后灯管电流减小,灯管端电压太高,超过了启辉器的启辉电压,造成频繁的启动。

3、要么就是开关的接触不好,就跟手机电源线一样,有时候内部的线头松散或者是断了的话就会导致手机电源连接不了充不了电一个道理。

关键词: 开关 怎么 回事

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