Do I need to use turn signals when changing lanes?

[SanLeah]

It is necessary to use turn signals when changing lanes, with the purpose of informing other vehicles that you are preparing to change lanes. The function of turn signals: Turn signals are controlled by electronic devices, but they still use audio to simulate the clicking sound of a relay. They are activated when a motor vehicle is turning to indicate to the driver that the turn signal is flashing and to alert vehicles in front, behind, and to the sides, as well as pedestrians, serving as an important warning light. Types of turn signals: Turn signals use flashers to achieve blinking lights. They can mainly be divided into three types: resistance wire type, capacitor type, and electronic type. Among them, the resistance wire type can be further divided into thermal wire type (electrothermal type) and vane type (spring-loaded type), while the electronic type can be subdivided into hybrid type (with contact-type relays and electronic components) and fully electronic type (without relays).