A mounting plate assembly has a mounting plate for mounting a light fixture in holes of different diameters and wherein a guide rail assembly is secured to a rear face of the mounting plate on opposed sides of an aperture. Each guide rail assembly has a novel displaceable spring clamp structure having to a displaceable base coupled for sliding displacement along a guide rail assembly. Spring biasing elements are provided between the displaceable base and the guide rail assembly to urge a bottom face of the displaceable base against a flat top surface of a mounting base to which the guide rails are secured. A retention formation is provided in the bottom surface of the displaceable base for retention coupling with a selected one of space-apart engageable retainers immovably secured to the flat top surface of the mounting base and aligned with the retention formation to arrest the displaceable base at a desired location to position the spring clamp structures at a desired location with respect to the size of a hole formed in the sheet material and to which a light fixture is to be secured.

A portable neck light for wearing on a user's neck is disclosed having a neck member adapted to fit around a user's neck, body members on each side of the neck member having a light source, a movable member allowing for the adjustment of each light source independently of the other, a power source and an on/off switch.

An accessory rail mountable light includes an accessory rail interface configured to selectively attach to an accessory rail of a firearm, the accessory rail being aligned with the bore of the firearm, at least one light activating button, and at least one light element. The at least one light activating button is reachable by an operator for selectively illuminating the at least one light element and the at least one light element illuminates an area in front and below the firearm when the firearm is pointed forward from an operator.

An accessory rail mountable light includes an accessory rail interface configured to selectively attach to an accessory rail of a firearm, the accessory rail being aligned with the bore of the firearm, at least one light activating button, and at least one light element. The at least one light activating button is reachable by an operator for selectively illuminating the at least one light element and the at least one light element illuminates an area in front and below the firearm when the firearm is pointed forward from an operator.

A light assembly for attachment to a surface of a vehicle. The light assembly includes a vehicle base configured to be coupled to the surface of the vehicle and a light head coupled to the vehicle base. The light head is configured to rotate relative to the vehicle base about a first axis and about a second axis that is different from the first axis. The light head is configured to rotate about the first and second axes at a first speed in response to a first user input, and to rotate about the first and second axes at a second speed that is different from the first speed in response to a second user input.

The present invention relates to a lighting device and a control method therefor. The lighting device according to the present invention comprises: a light source unit comprising one or more light emitting elements; a first body to which the light source unit is mounted; a second body; a sensor unit for sensing at least one of a relative posture and a relative position of the first body to the second body; and a control unit for controlling the light emitting operation of the light source unit on the basis of at least one of the relative posture and the relative position of the first body.

The present invention relates to a lighting device and a control method therefor. The lighting device according to the present invention comprises: a light source unit comprising one or more light emitting elements; a first body to which the light source unit is mounted; a second body; a sensor unit for sensing at least one of a relative posture and a relative position of the first body to the second body; and a control unit for controlling the light emitting operation of the light source unit on the basis of at least one of the relative posture and the relative position of the first body.

Apparatus and methods for deployment of fixtures. The apparatus may include a system for controlling deployed fixtures. The system may receive user commands different devices in different formats. The fixtures may be independently addressable. The fixtures may be magnetically supported by a fixture support. A brace may join two or more fixture supports without reducing space available to support fixtures. The brace may join a fixture support to a fixture support accessory. An accessory may include a variable-angle junction. The fixture may include articulating joints for controlling the direction of a beam. The fixture may include a lens having an electrically controllable beam spread angle. The fixture may be stowable in the fixture support. The fixture may be slidable along a cord to adjust a height of the fixture. The fixture may include an extendable ring. The system may coordinate motions of the fixtures to follow a target. The fixture may include an elongated board. The elongated board may include a non-polar power socket.

Apparatus and methods for deployment of fixtures. The apparatus may include a system for controlling deployed fixtures. The system may receive user commands different devices in different formats. The fixtures may be independently addressable. The fixtures may be magnetically supported by a fixture support. A brace may join two or more fixture supports without reducing space available to support fixtures. The brace may join a fixture support to a fixture support accessory. An accessory may include a variable-angle junction. The fixture may include articulating joints for controlling the direction of a beam. The fixture may include a lens having an electrically controllable beam spread angle. The fixture may be stowable in the fixture support. The fixture may be slidable along a cord to adjust a height of the fixture. The fixture may include an extendable ring. The system may coordinate motions of the fixtures to follow a target. The fixture may include an elongated board. The elongated board may include a non-polar power socket.

A retractable stanchion barrier system with a flexible RGB display matrix utilizes one or more stanchion units, each stanchion unit comprising a stanchion head, a weighted base, a stanchion post, and a flexible LED stanchion ribbon display which extends from each stanchion head. A computer system governs the operation of the flexible RGB display. The flexible LED stanchion ribbon display may extend from one stanchion head and connect to another stanchion head. The stanchion heads may mount to walls, doors or stanchion posts. Such a system may be configured to be ultra-portable or implemented as a fixture. A method for crowd control and line management using a stanchion display system utilizing one or more stanchion units is also recited.