LED related lighting methods and apparatus are described. Various features relate to water tight light fixtures. Some of the fixtures are spotlights while other fixture are intended for in ground use. The light fixtures in at least some embodiments include power control features. In spotlight embodiments beam angle and power or light output can be controlled without opening the light assembly or compromising the water tight seals which also protect against dirt. In ground embodiments support tilt angle setting which allow a user to set the light fixture to one or more tilt angles. Beam angle can also be changed in some embodiments as well as power control. Beam angle, power control and tilt angle adjustments are supported in some embodiments but need not be supported in all embodiments with some embodiments using one or more of the described features but not all features.

Example embodiments relate to luminaire head assemblies with brackets. One example luminaire head assembly includes a housing provided with a socket assembly. The luminaire head assembly also includes a light source arranged in the housing. Additionally, the luminaire head assembly includes a bracket releasably attached to the housing. The bracket is configured to fix the housing to a pole. The bracket has a first end for connection to a pole or pole connector and a second end attached to the housing. The bracket is provided with a through-hole at the second end. The socket assembly extends at least partially in the through-hole.

A modular luminaire assembly comprising includes a mounting ring configured to be selectively coupled with a mounting surface, an inner housing defining a channel configured to receive the mounting ring, wherein the mounting ring is configured to be selectively coupled with the inner housing, a lighting assembly, one or more diffusers configured to direct light from the lighting assembly; and a retaining ring including a ring body defining an opening a plurality of flanges configured to snap engage with the inner housing, wherein the ring body is configured to at least partially support the one or more diffusers and the lighting assembly.

An apparatus creating a flickering flame effect. The apparatus includes a housing with an interior space with first and second stages. A drive mechanism generates a time varying electromagnetic field extending into the first stage. A first pendulum member is pivotally mounted in the interior space of the first stage and includes first and second magnets on first and second ends, with the first end proximate to the drive mechanism such that the first magnet interacts with the varying electromagnetic field to cause movement of the pendulum member. The apparatus includes a second pendulum member pivotally mounted in the second stage with a magnet on a first end proximate to the second end of the first pendulum member. A flame silhouette element extends from the second pendulum member, and a light source transmits light onto the flame silhouette, which is moving due to the magnetic coupling of the pendulum members.

An apparatus creating a flickering flame effect. The apparatus includes a housing with an interior space with first and second stages. A drive mechanism generates a time varying electromagnetic field extending into the first stage. A first pendulum member is pivotally mounted in the interior space of the first stage and includes first and second magnets on first and second ends, with the first end proximate to the drive mechanism such that the first magnet interacts with the varying electromagnetic field to cause movement of the pendulum member. The apparatus includes a second pendulum member pivotally mounted in the second stage with a magnet on a first end proximate to the second end of the first pendulum member. A flame silhouette element extends from the second pendulum member, and a light source transmits light onto the flame silhouette, which is moving due to the magnetic coupling of the pendulum members.

The present disclosure is directed to a lighting retro-fit assembly including a panel configured for the passage of light therethrough, at least one light emitting diode (LED) secured to the panel, a driver electrically connected to the at least one LED, and an extendible suspension device, where the extendible suspension device permits mechanical connection of the panel to an existing lighting structure while enabling access to the driver.

An optical converter assembly includes a housing, a securing mechanism, and a light converter. The housing defines a first opening that receives part of a light-emitting portion of a dental curing light when the housing is selectively secured relative to the light-emitting portion of the dental curing light. The securing mechanism selectively retains the housing relative to the light-emitting portion. The light converter is comprised of a phosphor material and secured relative to the housing such that input light having a first set of wavelengths and radiant power emitted by the dental curing light is received. The light converter converts the input light to an output light having a second set of wavelengths and radiant power and to emit the output light. The input light includes a blue light and an ultraviolet light that polymerizes a dental material. The output light may be a white light.

A ceiling fitting includes a canopy provided with a fixed hook and a mounting hole, a movable hook mounted on the mounting hole of the canopy and having an arcuate restriction portion, a lighting module removably mounted on the canopy, and an outer cover covering the lighting module. The lighting module includes a lamp board mounted on the canopy and located between the movable hook and the fixed hook, and a light permeable shell mounted on the lamp board. The lamp board is provided with a first retaining groove and a second retaining groove. The first retaining groove is locked onto the movable hook, with the restriction portion of the movable hook being retained by the first retaining groove of the lamp board. The second retaining groove is locked onto the fixed hook.

The LED light has Track to install LED-units anywhere along the length. The LED-unit has pair of resilient or pop-out & fall-down movable contactor so can fit-within or add-on LED-units to track and connect with metal bus-strip(s) which has electric current or-and magnetic force to adhesive the pop-out & fall-down contactor on back of the LED-unit. LED light device including LED light source, or mini size LED fluorescent tube, or mini LED light bar, or mini LED Bulb, or mini LED lamp, mini LED Lamp as light source has housing to fit-in or add-on or magnetic adhesive on track to form a finish light device and get power from built-in or outside AC-to-DC transformer, circuit, power source and can control by switch, remote controller, motion/moving detector(s) sensor, all kind of sensor, APP software while incorporate with Wifi or wireless network to make the on-off, color changing, color mix, dimmer adjustment, moving light, all other light show for LED track light has fit-in LED-units by resilient contractors or LED track light has add-on LED-units by pop-out & fall-down movable contactor built on back of LED-unit and adhesive by magnetic force bus-strips.

A recessed downlight fixture and method for installation is provided. The recessed downlight fixture can be installed in a retrofit application, after a ceiling is installed, through a pre-existing opening in that ceiling. Alternatively, a recessed downlight fixture according to a second embodiment can be installed before a ceiling is present. In either embodiment, the light source coupled to, for example, a heat sink, can be universally moved in three degrees of movement, rotationally, along a tilt axis, or further within the ceiling to increase or decrease the recess. All such universal adjustments can take place through and below the ceiling opening during or after installation.