Integrated pocket framing system with 3.75" aperture; Compatible luminaire can be adjusted 30 to graze peak candela down wall; System designed with access to driver compartment for field maintenance; 18 gauge fixture suspension brackets and 20 gauge plenum cover; Total system weight drywall ceiling: 6 lbs./ft.; drop ceiling: 5 lbs./ft.; Extruded aluminum main housing with integral horizontal and vertical alignment features; Standard and optional emergency drivers mounted on wireway covers ship with luminaires. Install with quick connect wiring and quarter turn fasteners; Feed through wiring; Pattent pending; iLas - iLas Aimable Indexing LED Luminaire