Adjustable lighting assembly with hangar bars

A recessed lighting installation assembly, comprising:

• a junction box having a cavity to contain a lighting system together with electrical wires that provide a connection to a building mains voltage from an electrical system of a building for connecting to the lighting system, wherein:
• the junction box is required by at least one applicable building or safety code to contain and allow access to the connection to the building mains voltage;
• the building mains voltage is one of 120 V AC or 277 V AC;
• the cavity of the junction box has a size in compliance with the at least one applicable building or safety code;
• the junction box provides a heat barrier to block heat emitted by the lighting system and is formed of at least one of:
• at least one metal;
• at least one polymer;
• at least one metal alloy;
• and
• at least one other heat insulating material;
• and
• the junction box includes at least one knockout to allow passage of the electrical wires from the electrical system of the building into the cavity of the junction box;
• a plurality of telescoping hangar bars coupled to the junction box to hold the junction box in a wall or a ceiling in the building, each telescoping hangar bar of the plurality of telescoping hangar bars comprising a pair of mounting blocks to mechanically couple the telescoping hangar bar to the building, each telescoping hangar bar being extendible and/or retractable to vary a length of each telescoping hangar bar;
• and
• a plurality of hangar holders, each hangar holder of the plurality of hangar holders comprising:
• an attachment mechanism to couple the hangar holder to the junction box such that the hangar holder is in direct contact with the junction box;
• and
• a railing structure to hold one telescoping hangar bar of the plurality of telescoping hangar bars and allow the hangar holder to slide with respect to the length of the one telescoping hangar bar, wherein a position of the junction box is adjustable along at least a portion of the length of the one telescoping hangar bar.

A lighting system, comprising:

• a junction box having a sidewall that joins a top end, defines a bottom opening, and surrounds a cavity, wherein:
• the junction box is required by at least one applicable building or safety code to contain in the cavity, and allow access to, a connection to a building mains voltage from an electrical system of a building;
• the building mains voltage is one of 120 V AC or 277 V AC;
• the cavity of the junction box has a size in compliance with the at least one applicable building or safety code;
• the junction box includes one or more mounting tabs positioned proximate to the bottom opening of the junction box to align with one or more corresponding elements of a light source module;
• and
• the sidewall of the junction box includes at least one knockout;
• a plurality of hangar bar holders disposed on the sidewall of the junction box, each one of the plurality of hangar bar holders being moveably coupled to the sidewall of the junction box through a first attachment mechanism formed on each one of the plurality of hangar bar holders;
• a plurality of hangar bars to hold the junction box in a gap between a plurality of beams in a building, each one of the plurality of hangar bars being coupled to a corresponding one of the plurality of hangar bar holders via a railing structure disposed on each one of the hangar bar holders such that each one of the hangar bar holders slides along a corresponding one of the hangar bars;
• a pair of mounting blocks disposed on each one of the plurality of hangar bars, wherein each mounting block includes a second attachment mechanism to couple the junction box to the plurality of beams in the building;
• a unified casting having contained therein the light source module, the unified casting having the one or more corresponding elements that align with the one or more mounting tabs of the junction box, wherein the unified casting is at least partially positioned inside the cavity of the junction box such that the light source module is contained within the cavity of the junction box;
• and
• a driver to power the light source module.