Abstract: The invention provides a lamp that includes a power connection part and an illumination part. The power connection part includes a transparent casing, a wire component and a power supply component, where a mounting channel is formed in the transparent casing and includes a first end part and a second end part communicating with the first end part; the first end part and the second end part both penetrate through the transparent casing; and the wire component is inserted in the mounting channel, an accommodating space is arranged in the wire component, the power supply component is arranged in the accommodating space, and a port penetrating through the second end part of the transparent casing is located in the accommodating space.