Abstract: A taillight apparatus of a vehicle is arranged with a board provided with LEDs between a case and a lens. The board is arranged along a front and rear direction of the vehicle. A first reflector is provided at one end of the board on a side of the case, and is provided with a second reflector at the other end of the board on a side of the lens. The board is supported by interposing the board between the first reflector and the second reflector. The taillight apparatus configured in this manner has a reduced height dimension and a board with increased strength.

Abstract: There is provided a taillight apparatus capable of downsizing the taillight apparatus by reducing a height dimension of the taillight apparatus and capable of increasing a strength of supporting a board. A taillight apparatus 10 is arranged with a board 13 provided with LEDs 31 and 32 between a case 11 and a lens 12, arranged with a board 13 along a front and rear direction of a vehicle, provided with a first reflector 21 at one end of the board 13 on a side of the case 11 and provided with a second reflector 22 at other end of the board 13 on a side of the lens 12, and the board 13 is supported by interposing the board 13 between the first reflector 21 and the second reflector 22.