Abstract: A light fixture or troffer for directing light emitted from a light source toward an area to be illuminated, including a reflector assembly within which the light source is positioned, a lens assembly detachably secured to a portion of the reflector assembly such that a lens of the lens assembly overlies a portion of the light source, and a plurality of end caps secured to a housing of the light fixture and overlying a portion of the light source such that substantially all of the light emitted from the light source passes through the lens assembly and the end caps.

Abstract: A light fixture or troffer for directing light emitted from a light source toward an area to be illuminated, including a reflector assembly within which the light source is positioned; a housing defining at least one selectively enclosable ballast enclosure; and a ballast that is positionable in the at least one ballast enclosure.

Abstract: A light fixture or troffer for directing light emitted from a light source toward an area to be illuminated, including a reflector assembly within which the light source is positioned and a lens assembly detachably secured to a portion of the reflector assembly such that a lens of the lens assembly overlies the light source and such that substantially all of the light emitted from the light source passes through the lens assembly. The reflector assembly including at least one longitudinally extending hollow that extends inwardly to a central portion between respective first and second hollow edges. Each hollow has a plurality of longitudinally extending male ridges.

Abstract: A light fixture or troffer for directing light emitted from a light source toward an area to be illuminated, including a reflector assembly within which the light source is positioned and a lens assembly detachably secured to a portion of the reflector assembly such that a lens of the lens assembly overlies the light source and such that substantially all of the light emitted from the light source passes through the lens assembly. In one example, the lens includes a curved prismatic surface that can be oriented toward or away from the underlying light source.