Abstract: A lighting system, including but not limited to security lighting systems, includes a light fixture having a housing and a light source supported on the housing. The light fixture may include an adjuster that is adjustable to control both an output level of the light source and an external light level at which the light source is activated. Additionally or alternatively, the light source may be a first light source, and the light fixture may include a second light source and a motion sensor housed within an installation cavity of the housing and behind an optic of the light fixture. The first light source may be supported on the housing outside of the installation cavity.

Abstract: A lighting system, including but not limited to security lighting systems, includes a light fixture having a housing and a light source supported on the housing. The light fixture may include an adjuster that is adjustable to control both an output level of the light source and an external light level at which the light source is activated. Additionally or alternatively, the light source may be a first light source, and the light fixture may include a second light source and a motion sensor housed within an installation cavity of the housing and behind an optic of the light fixture. The first light source may be supported on the housing outside of the installation cavity.

Abstract: The present disclosure is directed to a fluidized bed contaminant treatment system comprising plural stacked distributor elements that can be rigidly fixed to a housing surrounding the fluidized bed.