名称：镇流稳定

当电流增加太多而突然，它可能破坏灯，所以它把镇流器串联，以防止电流增加。 所以，适当的镇流器使用可提高灯泡的使用寿命和安全性。

name: ballast stabilizer

When current is increased too much and abruptly, it could destroy lamp, so it put the ballasts in series to prevent current increases. So that proper ballast use can increase the lamp life and safety.