A troffer light fixture that is easy to install, requires no brackets to have an acceptable appearance with regard to an existing, previously installed troffer housing, and can be used as a retrofit or as a new installation. The troffer light fixture includes one or more mechanisms with which a user can interact to extend or retract arms that are provided on the back side of the troffer light fixture. These arms work to secure the troffer light fixture in place relate to a ceiling, and when retracted provide that the troffer light fixture can be easily removed from the ceiling. The mechanism can take many forms, but in one embodiment can be provided as being a gear that meshes with gear racks that are provided on the arms.