1. A phosphor blend consisting of a red-emitting rare earth phosphor, a green-emitting rare earth phosphor, and a blue-emitting rare earth phosphor, wherein the blue-emitting rare earth phosphor is selected from the group consisting of BAM and SCAp, and wherein the median particle size of the red-emitting rare earth phosphor, the green-emitting rare earth phosphor, and the blue-emitting rare earth phosphor is between about 12 to 15 ?m.

1. A system for controlling the dimming of a solid-state light source, the system comprising:
a digital rectification module configured to rectify a phase-cut alternating current (AC) signal into:
a rectified direct current (DC) power; and
a rectified phase-cut signal; and
a microcontroller configured to receive the rectified phase-cut signal, wherein the microcontroller comprises:
a timer module configured to:
measure, within a given period, a duration of a low state of the rectified phase-cut signal and output a low value based thereon;
and

measure, within the given period, a duration of a high state of the rectified phase-cut signal and output a high value based
thereon; and

a PWM module configured to generate a pulse-width modulation (PWM) signal based on at least one of the low value and the high
value.

1. A lighting device, comprising:
a plurality of solid state light sources;
a housing encompassing the plurality of solid state light sources, wherein the housing comprises a first end comprising a
first end cap and an opening;

a first set of pins extending from the first end cap;
a first set of pin connectors, coupled to the first set of pins; and
a movable actuator, wherein the movable actuator comprises a pair of electrical connectors that correspond to the first set
of pin connectors and are coupled to the plurality of solid state light sources, a bridge that holds the pair of electrical
connectors, and a holder extending from the bridge through the opening in the first end cap, wherein the movable actuator
is capable of movement between a closed position and an open position, wherein the closed position results in an electrical
connection between the pair of electrical connectors and the first set of pin connectors, and wherein the open position results
in no electrical connection between the pair of electrical connectors and the first set of pin connectors.

1. A lighting device, comprising:
a solid state light source;
an electronic driver for the solid state light source configured to receive power from a power source and to provide the power
to the solid state light source;

a first housing that contains, at least in part, the electronic driver, and comprises a support, wherein the support comprises
an exterior and an interior, wherein the interior comprises a first opening; and

a second housing connected to the first housing, such that the support of the first housing provides mechanical support to
the second housing, wherein the second housing is a heat sink for the lighting device and comprises an interior portion and
an exterior portion, wherein the exterior portion comprises a plurality of external openings, wherein the interior portion
comprises a second opening corresponding to and substantially co-planar with the first opening of the first housing, such
that air entering an external opening in the plurality of external openings is able to mix with air located in the first housing
by flowing through the first opening and the corresponding second opening, so as to cool the electronic driver.

1. A power supply to generate a current to drive a load, comprising: front end circuitry to generate a direct-current voltage
based on an input voltage; control circuitry to control generation of output power based on the direct-current voltage, the
control circuitry including startup circuitry, power factor correction circuitry, and output power configuration circuitry;
and drive circuitry to generate the at least one current based on the output power, the drive circuitry including at least
drive current configuration circuitry, wherein the drive circuitry comprises a transformer having a primary winding and a
secondary winding, wherein the primary winding is connected to the start-up circuitry and the input voltage and the secondary
winding is connected to the drive configuration circuitry and not the input voltage.

1. A solid-state lamp comprising:a printed circuit board (PCB);
a first plurality of solid-state emitters populated over the PCB and configured to emit light having a first correlated color temperature (CCT);
a second plurality of solid-state emitters populated over the PCB and configured to emit light having a second CCT that differs from the first CCT; and
a controller configured to:
electronically control, via a control signal, emissions of the first plurality of solid-state emitters and the second plurality of solid-state emitters such that:
in a first emissions mode, the first plurality of solid-state emitters emits light, wherein a spectral power ratio of the light emitted at a wavelength in the range of about 400-495 nm to a remainder of the light emitted by the first plurality of solid-state emitters in the first emissions mode is such that the light emitted at the wavelength in the range of about 400-495 nm constitutes about 10% or less of a total light emitted by the first plurality of solid-state emitters; and
in a second emissions mode, the second plurality of solid-state emitters emits light, wherein a spectral power ratio of the light emitted at a wavelength in the range of about 400-495 nm to a remainder of the light emitted by the second plurality of solid-state emitters in the second emissions mode is such that the light emitted at the wavelength in the range of about 400-495 nm constitutes about 30% or more of a total light emitted by the second plurality of solid-state emitters; and
provide for changing between the first emissions mode and the second emissions mode based on hysteresis of a lighting switch associated with a power socket with which the solid-state lamp is configured to be operatively coupled.

1. A lighting system comprising:a mounting fixture configured to engage a mounting surface;
a light fixture configured to engage the mounting fixture and comprising a driver configured to drive a light source;
a first fastener comprising a movable elongated member and configured to removably couple the light fixture to the mounting fixture in an extended configuration;
a second fastener configured to removably couple the light fixture to the mounting fixture in a retracted configuration; and
a first heatsink for dissipating heat generated by a light source coupled to the light fixture; and
a second heatsink distinct from the first heat sink and for dissipating heat generated by the driver.

1. A reflector assembly for a variable-beam illumination device comprising:an array of light sources that produces an output of light;
a first discrete concave reflector segment at least partially surrounding the array of light sources and shaped to produce a first light distribution, the first light distribution having a wide-angle light distribution from the output;
a second discrete concave reflector segment at least partially surrounding the array of light sources and shaped to produce a second light distribution, wherein the second light distribution from the output is narrower than the first light distribution; and
means for selectively activating the array of light sources,
wherein at least one of the first and second concave reflector segments is movable relative to the other one of the first and second concave reflector segments between a first position and a second position, such that:
(a) the outer light sources of the array of light sources are selectively activated by the means and a portion of the output is intercepted and reflected to effectuate the first light distribution when the at least one of the first and second concave reflector segments is in the first position, and
(b) the inner light sources of the array of light sources are selectively activated by the means and a portion of the output is intercepted and reflected to effectuate the second light distribution when the at least one of the first and second reflector segments is in the second position.

1. A low profile light, comprising:one or more solid state light sources;
a cover disposed in relation to the one or more solid state light sources such that light emitted by the one or more solid state light sources passes through the cover;
a driver to supply electrical power to the one or more solid state light sources, wherein the driver is contained within a driver housing; and
a low profile light (LPL) housing comprising:
a central portion having a first side and a second side;
a lip, wherein the lip extends around an outer edge of the LPL housing;
a cover receptacle configured to receive the cover;
an outer face, wherein the outer face extends from the lip inward towards the cover receptacle;
an inner surface, wherein the inner surface extends downward away from the central portion and upward towards the lip, so as to form a valley; and
a fin, extending perpendicularly up from and engaged to the central portion and independent of the driver housing, wherein the fin is of curved configuration and is configured to at least partially surround a correspondingly curved exterior portion of the driver housing when the driver housing is hosted by the LPL housing, and wherein the fin is not configured to hold the driver housing in contact with the LPL housing.

1. A system, comprising:a load including a first light source and a second light source; and
a power supply to drive the load, the power supply comprising:
a front end circuit to generate a direct current voltage based on an input voltage received from a dimmer;
a converter circuit to generate a first voltage to drive the first light source and a second voltage to drive the second light source based on the direct current voltage; and
a load current control circuit to control a current flowing through the second light source based on a light control setting configured in the dimmer, the load current control circuit being configured to control the current flowing through the second light source to cause the first light source and the second light source to operate collaboratively in a dimming function of the light control setting, wherein the load current control circuit is configured to control the current flowing through the second light source based on a sense voltage proportional to a current flowing solely through the first light source, the sense voltage proportional to the current flowing solely through the first light source being determined from at least one sense resistor that is in communication with only the first light source, wherein the load current control circuit comprises a current regulator circuit to control the current flowing through the second light source, wherein the current regulator circuit comprises an operational amplifier, a first resistor coupled to an output of the operational amplifier, a transistor having a gate coupled to the first resistor and a drain coupled to an output of the second light source, a second resistor coupled between a source of the transistor and an input to the operational amplifier, a current sense resistor coupled between the source of the transistor and a negative terminal of the first light source, and a capacitor coupled between the first resistor and the sense resistor.

1. An LED driver system having a backup energy source, the system comprising:a first AC mains input configured for coupling to an AC mains power source;
a voltage regulation circuit coupled to the AC mains input and receiving AC or rectified AC power, the voltage regulation circuit having one or more bus coupling I/Os;
a voltage to current converter circuit having one or more bus coupling I/Os and a regulated current output configured to drive a light source comprising one or more light emitting diodes;
an energy storage management system coupled to a removable energy storage device and having one or more bus coupling I/Os, the energy storage management system comprising:
a converter controlling a voltage on the energy storage device and charging and discharging rates of the energy storage device; and
a controller controlling the converter, the controller also receiving feedback from the converter,
wherein the voltage regulator circuit and the voltage to current converter circuit each comprise a controller, and wherein the combination of these two controllers is programmed, coded, or wired to receive AC power from the AC mains power source and convert this to a regulated current for driving the light source when the energy storage management system is decoupled from the system;
a bus having at least data and power channels, wherein the energy storage management system, the voltage regulator circuit, and the voltage to current converter circuit are all coupled to the bus; wherein
the voltage regulation circuit or the voltage to current converter circuit comprises a master controller and the master controller controls the controller of the energy storage management system as well as a controller of whichever of the voltage regulation circuit or the voltage to current converter does not comprise the master controller; and wherein
the master controller is programmed, coded, or wired to control:
driving the light source from a simultaneous combination of the energy storage device and the AC mains power source;
simultaneous charging the energy storage device and driving the light source from the AC mains power source; and
driving the light source from the energy storage device when the AC mains power source is not available.

1. An end cap apparatus, comprising:a base having a first side and an opposed second side;
an outer wall having an inside surface and an outside surface, the outer wall extending a first distance from the first side of the base;
an inner wall having an inside surface and an outside surface, the inner wall extending a second distance from the first side of the base and spaced inward of the outer wall to define a gap therebetween; and
at least one contactor disposed at least partially in the inner wall, the at least one contactor extending beyond the outside surface of the inner wall and being capable of exerting a force directed outwardly from the outside surface of the inner wall;
wherein:
the outer wall has at least one aperture that is coaxially aligned with the at least one contactor; and
the at least one contactor comprises a plurality of contactors and the at least one aperture comprises a corresponding plurality of apertures, each of the plurality of apertures being coaxially aligned with a respective one of the plurality of contactors.

1. A light device for producing an output light beam, comprising:a first end;
a second end;
a longitudinal axis extending therebetween;
a light source assembly comprising a plurality of light sources arranged at the first end of the light device and configured to emit light towards the second end and parallel with the longitudinal axis;
a substrate upon which the light source assembly is disposed, the substrate and the light source assembly forming a first surface;
a chamber for mixing light emitted from the light source assembly, the chamber comprising a second surface that is located substantially at a focus of the reflecting optic;
a concave reflecting optic for redirecting light exiting the chamber and emitted onto the optic, the redirected light forming an output light beam, the chamber positioned between the light source assembly and the concave reflecting optic, wherein the concave reflecting optic comprises a series of adjacent parabolic segments each having a different aiming angle; and
driver circuitry for controlling drive currents to respective ones of the plurality of light sources individually or in groups thereof to thereby variably control a divergence of the output light beam, the output light beam exiting the second end of the light device.

1. A system for retrofitting a fluorescent based lighting fixture troffer to an LED-based lighting fixture, the LED-based lighting fixture comprising:a driver module;
a track electrically connected to the driver module, wherein the track comprises at least one electronic conductor disposed along a length of the track;
at least one track adapter removably connected to the track, wherein the at least one track adapter comprises a locking mechanism configured to engage removably with the track at a position along the track; and
at least one light engine module configured to be removably engaged with the at least one track adapter.

1. An apparatus comprising:an analyzer for determining a transformer type based at least in part on a power signal received from a transformer, wherein the determined transformer type corresponds to a magnetic transformer or an electronic transformer; and
a generator for generating a control signal, based at least in part on the determined transformer type, to instruct a regulator IC to operate in one of a plurality of operating modes in accordance with the transformer type, wherein the plurality of operating modes comprise a first mode for accepting a low-frequency input voltage and a second mode for accepting a high-frequency input voltage;
wherein the apparatus is a processor, microprocessor, application-specific integrated circuit, or field-programmable gate array.

1. A system for controlling multiple appliances concurrently using short-range wireless communication, the system comprising:a control device having a control processor capable of encoding at least one command within at least one advertisement to make a command advertisement;
a transmission device integral with the control device capable of transmitting the command advertisement, wherein the at least one command advertisement contains the at least one encoded command;
a plurality of appliances remotely located relative to the control device;
a plurality of receiving devices, wherein each of the plurality of appliances has at least one of the receiving devices, the appliances each capable of receiving the at least one command advertisement through the at least one receiving device; and
a plurality of appliance processors, wherein each of the plurality of appliances has at least one of the plurality of appliance processors, wherein each of the plurality of appliance processors is capable of decoding the at least one encoded command,wherein each of the receiving devices receive the at least one command advertisement without being paired to the transmission device.

1. A light source producing a beam of variable divergence, comprising:a plurality of light-emitting devices arranged on a plane that includes a first set of light emitting devices positioned around a second set of light emitting devices;
a concave reflecting optic having an axis of symmetry traveling through the second set of light emitting diodes, and comprising a plurality of segments for reflecting at least a portion of light emitted by the light-emitting devices and reflected by the optic forming a light beam, the segments having an aiming angle which increases gradually with increasing distance from the plane of the plurality of light emitting devices for increasing light divergence of the light beam; and
driver circuitry for controlling drive currents to the light-emitting devices such that a maximum divergence of the light beam is produced by said driver circuitry powering outermost light emitting devices of the first set of light emitting devices, and a gradually decreasing divergence of the light beam is produced by said driver circuitry decreasing a number of powered outermost light emitting devices of the first set of light emitting devices while selectively powering a combination of the inner light emitting devices of the first set of light emitting devices and the second set of light emitting devices.

1. A method of controlling lighting comprising:color coding at least one group icon for a scene for lighting on a light control interface, the at least one group icon being color coded with a first type color identifier corresponding to the scene;
grouping at least one member icon designating a light function form for at least one lamp to the at least one group icon on the light control interface, the at least one member icon including a second type color identifier, wherein a member icon being grouped to a group icon has a same color for the second type color identifier for the member icon as the first type color identifier, the second type color identifier is present at a periphery of the at least one member icon, wherein the second type color identifier comprises a plurality of segments of different colors identifying grouping of the at least one member icon to more than one group in said at least one group icon, wherein each segment of the plurality of different colors designates that the at least one member icon is grouped to the group icon color coded with said same color as said each segment of the second type color identifier; and
activating the at least one lamp of the member icon being grouped to the group icon by selecting the group icon having the first color identifier matching the second color identifier of the member icon.

1. A lamp comprising: a housing including a light projecting end and a base having an electrical connector for connection with a lamp fixture; a light engine positioned at the light projecting end of the housing; a driver assembly in electrical communication with the electrical connector of the base of the housing; and an inductive connection positioned between the driver assembly and the light engine, the inductive connection comprises a transmission coil in the driver assembly, and a receiver coil in the light engine that provides for the transfer of energy magnetically from the driver assembly to the light engine, and the driver assembly comprises a printed circuit board including an electromagnetic interference (EMI) rectifier, a power factor correction (PFC) regulator, and a resonant converter stage, wherein the electromagnetic interference (EMI) rectifier is in physical electrical connection with an electrical connector of the base, and the resonant converter stage is in physical electrical connection with the inductive transmission coil (Tx) of the inductive connection;wherein the light engine includes a light engine printed circuit board (PCB), the light engine PCB includes a network matching in physical electrical connection with the inductive receiver coil (Rx), a rectifier and filter portion that converts the AC voltage from the inductive receiver coil to DC voltage, an output regulator that regulates the DC voltage to an amount for an LED load for use by the light engine, and an LED load portion in physical electrical connection with the light engine.

1. A lamp comprising:a glass tube body having a perimeter defined by a sidewall of the glass tube body for enclosing a hollow interior, that glass tube body having an exterior surface and an interior surface, in which the exterior surface and the interior surface of the sidewall are textured to increase light diffusivity; and
at least one light emitting diode (LED) comprising a substrate that provides the light positioned within the hollow interior of the glass tube body.

1. A lamp tube comprising:a glass tube body having a cross-sectional geometry that is perpendicular to a length of the glass tube body with a substantially cylindrical perimeter defined by a sidewall of the glass tube body enclosing a hollow interior for housing a light source, the sidewall of the glass tube body that defines the substantially cylindrical perimeter including at least two ridges on an interior surface of the sidewall that provides the substantially cylindrical perimeter, each ridge of said at least two ridges comprises an apex extending towards the hollow interior for the glass tube body, and said each ridge extends continuously with uniform dimensions along a majority of the length of the glass tube body, wherein from a perspective of an exterior surface of the sidewall of the glass tube body a divot is present corresponding to said each ridge.