A rear turn lamp has a structure formed of divided components, i.e., a first lamp unit provided to a fixed portion of a vehicle body and a second lamp unit provided to a movable portion of the vehicle body. The first lamp unit is provided with a controller. A first lighting circuit turns on multiple first light sources. A second lighting circuit turns on multiple second light sources.

A rear turn lamp has a structure formed of divided components, i.e., a first lamp unit provided to a fixed portion of a vehicle body and a second lamp unit provided to a movable portion of the vehicle body. The first lamp unit is provided with a controller. A first lighting circuit turns on multiple first light sources. A second lighting circuit turns on multiple second light sources.

A flasher relay for driving a left turn signal lamp and a right turn signal lamp of a vehicle to flash includes a main body and a control circuit. The main body includes a base, a casing, and a circuit board. The circuit board is disposed on the base. The casing is mounted on the base and covers the circuit board. The control circuit is disposed on the circuit board. The control circuit includes a microchip having an input terminal coupled to a field-effect transistor and an electromagnetic buzzer. A drain of the field-effect transistor and one end of the electromagnetic buzzer are coupled to a node B. A heat dissipation terminal of the field-effect transistor is coupled to the node B, and the node B guides thermal energy to a wire.

A turn signal control apparatus includes a switch, a flashing cycle control device, an operation device, a sharp deceleration-detection device, a bypass device, and a flashing cycle modification device. The flashing cycle control device is to determine a flashing cycle. The operation device is to open and close the switch according to the flashing cycle determined by the flashing cycle control device so that a turn signal lamp flashes. The flashing cycle modification device is to modify the flashing cycle determined by the flashing cycle control device to produce a modified flashing cycle according to a sharp deceleration-detection signal. The flashing cycle modification device and the bypass device are configured to operate to electrically connect an upstream side of the operation device and a downstream side of the operation device according to the modified flashing cycle in a case where the sharp deceleration-detection signal is outputted.