Abstract: A light fixture includes a raceway, a lampholder, and a power pack. The raceway includes an aperture and a locking aperture. The lampholder is electrically connected to a lampholder connector. The power pack includes a power pack cover and a ballast and a deployable sensor. The deployable sensor includes a sensor head, a conduit and pivotable coupling that permits movement of the sensor between a deployed position and a stowed position. The power pack cover includes a latching end. The ballast includes a power input connector adapted to electrically connect to a power cord and a ballast output connector adapted to electrically connect to the lampholder connector. The latching end includes a flange adapted to mate with the aperture of the raceway and a locking protrusion adapted to mate with the locking aperture of the raceway such that the power pack is detachably mountable to the raceway.

Abstract: A light fixture includes a raceway, a lampholder, and a power pack. The raceway includes an aperture and a locking aperture. The lampholder is electrically connected to a lampholder connector. The power pack includes a power pack cover and a ballast and a deployable sensor. The deployable sensor includes a sensor head, a conduit and pivotable coupling that permits movement of the sensor between a deployed position and a stowed position. The power pack cover includes a latching end. The ballast includes a power input connector adapted to electrically connect to a power cord and a ballast output connector adapted to electrically connect to the lampholder connector. The latching end includes a flange adapted to mate with the aperture of the raceway and a locking protrusion adapted to mate with the locking aperture of the raceway such that the power pack is detachably mountable to the raceway.

Abstract: An anti bird-perch lighting system for use with a facility that includes a plurality of dome-shaped light collectors disposed on a rooftop of the facility, with a projection extending from an apex of the light collector, and at least one filament extending from substantially all of the projections so that each projection is connected to two or more of the other projections to define a filament network disposed above the roof and proximate a top of the plurality of light collectors.