A luminescent extension is provided for connecting a box-ended wrench with a socket. The luminescent extension includes a cylinder, an upper tubular insert, a light assembly, a cover and a lower tubular insert. The upper tubular insert 11 extends from an upper end of the cylinder for releasable connection with the box-ended wrench. The light assembly is installed in the cylinder. The cover is rotationally mounted on the upper end of the cylinder between an OFF position for turning off the light assembly and an ON position for turning on the light assembly. The lower tubular insert extends from a lower end of the cylinder for releasable connection with the socket. Light can emit from the light assembly through the lower tubular insert.
A driver head, including a body with a connecting end, a control member, a light emitting element and a power supply element; a control member is pivotally installed in the transversal groove of the body; an electrically conducting plate is contained in the conducting groove of the control member; the outer circumferential surface of a light emitting element is in contact with the body; a plurality of power supply elements are installed in the third groove; a resilient element is installed in the third groove; the control member has a conducting groove, such that the electrically conducting plate can be installed in the conducting groove, and the control member can be turned to drive the electrically conducting plate or the control plane to contact the power supply element, for controlling an electric connection.
