Is it a turn signal or blinker?

In automotive terminology, "turn signal" and "blinker" refer to the same device, namely a flashing light device used to indicate a vehicle's intention to turn or change lanes. This device is usually activated by a control lever and installed at four positions: front, rear, left, and right of the vehicle. When the driver is about to turn, the lights in the corresponding direction will flash in pairs to alert other road users. Its proper use can significantly enhance driving safety by communicating driving intentions in advance to reduce traffic accidents. If the turn signal remains illuminated without flashing or exhibits abnormal flashing patterns, it may indicate a damaged bulb or faulty electrical connection, requiring prompt inspection to ensure road safety.