To provide a show case, in which electrical connection between a terminal of an illumination lamp and a power feeding part formed in a socket can be carried out certainly and safely, and simplicity of installation work of the illumination lamp is attained.

The show case 1 is provided with a socket 22 which is constituted of a main unit side socket member 23 and an illumination lamp side socket member 24 which connect the illumination lamp 14 to a power supply of a main unit. The main unit side socket member has a connection portion 29 having a power feeding contact piece 35 built in and the illumination lamp side socket member 24 has an installation lamp 55 installed at end part of the illumination lamp 14 and a housing portion 56. In a state the installation portion 55 is installed at the end part of the illumination lamp 14, the terminal 14A faces the housing portion 56 and in the state the connection portion 29 is housed in the housing portion 56, the terminal 14A is electrically connected to the power feeding contact piece 35 and energizes the power feeding contact piece 35 to the terminal 14A side by a pressing part 61 formed in the housing portion 56.