Characteristic configuration of the present invention is the receiving groove 101 is built in the lamp is formed therein, the locking ring 102 is formed around the surface, the locking projection 104 and the fitting piece 103 is the inner side Body 100 formed to protrude into; A support ring 200 installed on the surface of the body 100 and having an insertion hole 201 through which an insertion piece 103 is inserted, and a support protrusion 202 protruding inward from an inner circumferential surface thereof; The fixing ring 301 is inserted into the support ring 200 to uniformly diffuse the light generated by the lamp embedded in the body 100, and the end of the support protrusion 202 is coupled to one end of the support ring 200. It is composed of a protective cover (300).;Ceiling, Landfill, Luminaire, Protective Cover, Interior
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