什么是电磁镇流器
电磁镇流器是一种用于照明灯具，尤其是荧光灯的装置。它根据电磁学原理工作，电流通过导线时会产生磁场。电磁镇流器又称磁镇流器或扼流圈，由一个铜线线圈组成。线圈产生的磁场可以控制流向荧光灯的电流。铜线的粗细和长度决定了通过的电流大小。
电磁镇流器 会导致 颤巍巍 或产生嗡嗡声。这是由于镇流器引起的电流波动造成的。与电子镇流器相比，电磁镇流器被认为不够先进。某些型号的电磁镇流器需要使用启动器（一个充满气体的圆筒状小部件）来启动照明。这种启动方法被称为 预热方法.
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