The present disclosure relates to adapting a commonly used lighting fixturethat is generally specified as theprima-ry lighting source for illuminating a particular area as the apparatusfor enclosing an additional UV lighting mechanism. Further,the disclosure relates to a device that can be integrated into a light fixtureused with a suspended grid ceiling or a solid ceiling.Also, the present disclosure relates to a germicidal fixture used inassociation with a light fixture, and to an apparatus for a newgermicidal light fixture and for replacing or converting an existing lightfixture for efficient germicidal use.