SG124型闪光器是属于热跳结构,即通常称谓弹跳式,国外称之翼片式,动作的原理是:利用电流的发热效应,以一根热敏金属扁线的热胀冷缩为动力,接通和断开触点,达到使转向信号灯发出忽亮忽暗的灯光闪烁。 SG124-type flasher is a thermal jump structure, which is commonly referred to as the spring-type, the so-called foreign-style wing, the action principle is: the use of current heating effect, with a thermal metal flat wire thermal expansion and contraction as the driving force, Turn on and off the contact, so that the lights turn on and off the signal flashing lights flashing.