Abstract: A light bulb, comprising: a circuit board, provided with a light-emitting unit, two first wiring parts and at least two second wiring parts, wherein one of the first wiring parts and one of the second wiring parts are both connected to a positive terminal of the light-emitting unit, and the other first wiring part and the other second wiring part are both connected to a negative terminal of the light-emitting unit; and a fixing member connected to the circuit board, the fixing member being capable of fixing wires to the first wiring parts and the second wiring parts.

Abstract: The present disclosure discloses a battery box lamp wire installation structure, which relates to the technical field of power supply devices and it comprises a case, provided with an accommodating cavity inside; a printed circuit board, horizontally located in the accommodating cavity and fixedly connected with the case; an end cap, movably mounted on one end of the case, and the end cap is provided with a wire hole A; a lamp wire, of which one end penetrating through the wire hole A and restrained within the end cap; a connector, detachably mounted at the inner side of the end cap and fixing the positive and negative ends of the lamp wire; the positive and negative ends of the lamp wire are in electrical connection with the printed circuit board respectively when the end cap is mounted onto the case.