Fixture

The present invention relates to a fixture applied to fix a lamp on a plane. The fixture comprises: a stable bracket with a first joint fixed on the plane; a support, connected to the lamp, with a second joint to slide into the first joint and to assemble; and a hinge, connected between the stable bracket and the support, used to fix the support on the stable bracket when the second joint of the stable bracket sliding into the first joint of the stable bracket.