Abstract: A blower unit can include an outer housing, an inlet subassembly, a fan subassembly, an outlet subassembly, and a grommet. The outer housing can have an aperture extend along a first axis between first and second ends. The inlet subassembly can be received in the first end of the aperture. The fan subassembly can be received in the aperture adjacent to the inlet subassembly and include at least one wire. The outlet subassembly can be received in the second end. The grommet can be positioned between at least part of the second end and the outlet subassembly. The at least one wire can extend through the grommet. The grommet can seal against the at least one wire. The grommet can seal between the outer housing and the outlet subassembly.

Abstract: A lighting system is disclosed herein. The lighting system can include light module for surface, recessed or pendant mounting. The module can include a channel having side walls and an open top and can extend between first and second ends. The module can also include an array of light emitting diodes disposed in the channel and a driver for controlling the light emitting diodes. The module can also include a lens mountable in the open top and a cap selectively engageable with at least one of the first and second ends. The cap can be removed from one of the ends when the module is interconnected with a second light module. The system can also include any one or more of a linking bracket, a positioning bracket assembly, tools for assembling the lens to the channel, and a control module.

Abstract: A blower unit can include an outer housing, an inlet subassembly, a fan subassembly, an outlet subassembly, and a grommet. The outer housing can have an aperture extend along a first axis between first and second ends. The inlet subassembly can be received in the first end of the aperture. The fan subassembly can be received in the aperture adjacent to the inlet subassembly and include at least one wire. The outlet subassembly can be received in the second end. The grommet can be positioned between at least part of the second end and the outlet subassembly. The at least one wire can extend through the grommet. The grommet can seal against the at least one wire. The grommet can seal between the outer housing and the outlet subassembly.

Abstract: A respiratory device can include an oxygen generator and a ventilator. The oxygen generator can include a first inlet to ambient air, a vacuum or pressure swing oxygen generating system in fluid communication with the first inlet, a first fluid pathway, and a first outlet. The ventilator can include a second inlet to ambient air and a blower in fluid communication with the second inlet to draw ambient air. The ventilator can include a third inlet in fluid communication with the first fluid pathway upstream of the first outlet. The blower can also be in fluid communication with the second inlet to draw at least some of the extracted oxygen. The ventilator can also include a second outlet in fluid communication with the blower to dispense a mixture of the ambient air and the extracted oxygen to the user.

Abstract: A blower unit can include an outer housing, an inlet subassembly, a fan subassembly, an outlet subassembly, and a grommet. The outer housing can have an aperture extend along a first axis between first and second ends. The inlet subassembly can be received in the first end of the aperture. The fan subassembly can be received in the aperture adjacent to the inlet subassembly and include at least one wire. The outlet subassembly can be received in the second end. The grommet can be positioned between at least part of the second end and the outlet subassembly. The at least one wire can extend through the grommet. The grommet can seal against the at least one wire. The grommet can seal between the outer housing and the outlet subassembly.

Abstract: A lighting arrangement operable to emit light is disclosed herein. The lighting arrangement can include a mounting bracket and a luminaire. The mounting bracket can have first and second bracket portions positioned about a central longitudinal axis of the mounting bracket. The mounting bracket can also include at least one pair of telescoping shafts interconnecting the first and second bracket portions. The mounting bracket can also include at least one spring positioned to bias the at least one pair of telescoping shafts to an extended configuration. The luminaire can have at least one spring member selectively engageable with at least one shaft of the at least one pair of telescoping shafts to selectively interconnect the luminaire and the mounting bracket.

Abstract: A lighting arrangement can include a luminaire, a driver circuitry assembly, and a battery backup portion. The luminaire can have light emitting diodes in an array string positioned in a first housing and a first wiring extending from the array string to a first plug connector. The driver circuitry assembly can drive the plurality of light emitting diodes and include circuitry with a rectifier and an IC chip positioned in a second housing and a second wiring extending from the circuitry to a second plug connector engageable with the first plug connector. The battery backup portion can be selectively positionable between the driver circuitry assembly and the external AC grid and have one or more batteries and a converter portion with a DC-AC inverter positioned in a third housing. The third housing and the second housing are interconnectable.

Abstract: A lighting arrangement operable to emit light is disclosed herein. The lighting arrangement can include a mounting bracket and a luminaire. The mounting bracket can have first and second bracket portions positioned about a central longitudinal axis of the mounting bracket. The mounting bracket can also include at least one pair of telescoping shafts interconnecting the first and second bracket portions. The mounting bracket can also include at least one spring positioned to bias the at least one pair of telescoping shafts to an extended configuration. The luminaire can have at least one spring member selectively engageable with at least one shaft of the at least one pair of telescoping shafts to selectively interconnect the luminaire and the mounting bracket.

Abstract: A lighting arrangement can include a luminaire, a driver circuitry assembly, and a battery backup portion. The luminaire can have light emitting diodes in an array string positioned in a first housing and a first wiring extending from the array string to a first plug connector. The driver circuitry assembly can drive the plurality of light emitting diodes and include circuitry with a rectifier and an IC chip positioned in a second housing and a second wiring extending from the circuitry to a second plug connector engageable with the first plug connector. The battery backup portion can be selectively positionable between the driver circuitry assembly and the external AC grid and have one or more batteries and a converter portion with a DC-AC inverter positioned in a third housing. The third housing and the second housing are interconnectable.

Abstract: A lighting arrangement can include a mounting bracket, a luminaire, at least one first spring arm, and at least one second spring arm. The mounting bracket can be releasably mountable to at least one of a junction box, a wall and a ceiling. The luminaire can extend along a longitudinal axis between a light emanating face and a rear face. The at least one first spring arm can extend between a base end and a distal end wherein the base end can be mounted to a first of the mounting bracket and the luminaire. The at least one second spring arm can extend between a base end and a distal end wherein the base end of the at least one second spring arm can be mounted to a second of the mounting bracket and the luminaire.

Abstract: A lighting arrangement can include a light emitter portion and a battery backup portion. The light emitter portion can have a plurality of light emitting diodes and circuitry including a rectifier for driving the light emitting diodes. The battery backup portion can be in electronic communication with the rectifier of the light emitter portion and have a battery portion and a converter portion with a DC-AC inverter and a microcontroller unit configured to route AC power to the rectifier from either a primary AC source or the battery portion. The light emitter portion can be configured to be mounted to at least one of a wall and a ceiling during use. The battery backup portion can be positioned within the trim, with the plurality of light emitting diodes in the array string.

Abstract: A lighting arrangement can include a mounting bracket, a luminaire, at least one first spring arm, and at least one second spring arm. The mounting bracket can be releasably mountable to at least one of a junction box, a wall and a ceiling. The luminaire can extend along a longitudinal axis between a light emanating face and a rear face. The at least one first spring arm can extend between a base end and a distal end wherein the base end can be mounted to a first of the mounting bracket and the luminaire. The at least one second spring arm can extend between a base end and a distal end wherein the base end of the at least one second spring arm can be mounted to a second of the mounting bracket and the luminaire.

Abstract: A lighting arrangement can include a housing assembly, a light emitter portion at least partially enclosed by the housing assembly, and a trim assembly selectively engageable with the housing assembly. The housing assembly can be selectively engageable with a junction box or a lighting can; can be substantially centered on an axis; and can include a casing with a lower tread surface, an upper riser surface, and an upper tread surface. The upper riser surface and the upper tread surface can be configured to be positioned in the box/can. The lower tread surface can be configured to contact a bottom surface of the box/can. The light emitter portion can include a plurality of LEDs, a first lens, and a reflector. The lens can be backlit by the LEDs. The trim assembly can have a greater diameter than the housing assembly.

Abstract: A lighting arrangement can include a light panel, a bracket, and a connecting member. The light panel can include a frame and a plurality of light emitting units. The bracket can be mountable on at least one of a wall and a ceiling. The frame of the light panel and the bracket can be selectively engageable with one another through movement of the light panel relative to the bracket along a path of movement in a direction between first and second positions. The connecting member can be fixedly engaged to the light panel or the bracket. The connecting member can be configured to interconnect the light panel and the bracket and to accumulate energy during movement of the frame along the path wherein the accumulated energy is at least partially released upon the light panel reaching the second position.

Abstract: A lighting arrangement can include a light panel, a bracket, first and second retaining members, and first and second connecting members. The light panel can include a frame and light emitting units. The bracket can be mountable on a wall or a ceiling and have a back surface contained in a first plane and configured to contact the wall or ceiling. The light panel and the bracket can be selectively engageable with one another through rectilinear or rotational movement of the light panel along first and second paths of movement. First and second retaining members and first and second connecting members can be configured to selectively cooperate with one another to selectively interconnect the light panel and the bracket. A portion of one of the connecting members can accumulate energy during movement of the light panel.

Abstract: A lighting arrangement can include a string of light emitting diodes (LEDs), a driver chip, a first switch, a bridge rectifier, and a second switch. The driver chip can be configured to direct current to the LEDs. The first switch can be configured to receive current from the grid for the driver chip. The first switch can be operable to change an amount of current directed to the driver chip to dim the LEDs. The bridge rectifier can be positioned between the first switch and the driver chip to convert alternating current to direct current. The second switch can be electrically connected with the driver chip whereby adjustment of the second switch results in a change in the amount of current directed to the LEDs from the driver chip and dim the LEDs. The first switch and the second switch are each concurrently operable to dim the LEDs.

Abstract: A lighting arrangement can include a light emitter portion and a battery backup portion. The light emitter portion can have a plurality of light emitting diodes and circuitry including a rectifier for driving the light emitting diodes. The battery backup portion can be in electronic communication with the rectifier of the light emitter portion and have a battery portion and a converter portion with a DC-AC inverter and a microcontroller unit configured to route AC power to the rectifier from either a primary AC source or the battery portion. The light emitter portion can be configured to be mounted to at least one of a wall and a ceiling during use. The battery backup portion can be positioned within the trim, with the plurality of light emitting diodes in the array string.

Abstract: A lighting arrangement can include a light panel, a bracket, first and second retaining members, and first and second connecting members. The light panel can include a frame and light emitting units. The bracket can be mountable on a wall or a ceiling and have a back surface contained in a first plane and configured to contact the wall or ceiling. The light panel and the bracket can be selectively engageable with one another through rectilinear or rotational movement of the light panel along first and second paths of movement. First and second retaining members and first and second connecting members can be configured to selectively cooperate with one another to selectively interconnect the light panel and the bracket. A portion of one of the connecting members can accumulate energy during movement of the light panel.

Abstract: A lighting arrangement can include a luminaire and a first plurality of spring arms. The luminaire can include a housing assembly and a light emitter portion at least partially enclosing the light emitter portion. The first plurality of spring arms can each be engageable with the luminaire and extend from a respective base end to a respective distal end. The base ends can be positioned closer to the housing assembly than the distal ends. Each of the first plurality of spring arms can extend vertically upward and away from the housing assembly along the axis such that the base ends are vertically lower than the distal ends. Each of the first plurality of spring arms can extend along a torturous path and be cantilevered off of the housing assembly.

Abstract: A lighting arrangement can include a light emitter portion and a battery backup portion. The light emitter portion can have a plurality of light emitting diodes and circuitry including a rectifier for driving the light emitting diodes. The battery backup portion can be in electronic communication with the rectifier of the light emitter portion and have a battery portion and a converter portion with a DC-AC inverter and a microcontroller unit configured to route AC power to the rectifier from either a primary AC source or the battery portion. The light emitter portion can be configured to be mounted to a junction box and positioned below a ceiling of a dwelling space during use. The battery backup portion can be configured to be selectively positionable between the light emitter portion and the junction box.