Abstract: A switch includes an upper insulative body, left and right terminals mounted to the upper insulative body such that connecting end portions of the terminals extend outwardly from the upper insulative body, a lower insulative body attached to the upper insulative body, and a sliding actuator disposed between the upper and lower insulative bodies. The upper insulative body has an upper sliding slot to permit extension of the sliding actuator. The left and right terminals further have two contact end portions which extend inwardly of the upper insulative body and which are spaced in a longitudinal direction. The sliding actuator is provided with a spring electric contact member which has left and right contact fingers to contact the contact end portions of the terminals.