LED related lighting methods and apparatus are described. Various features relate to water tight light fixtures. Some of the fixtures are flood lights. The light fixtures in at least some embodiments include power control features. In flood light embodiments beam angle and power or light output distribution can be controlled without opening the light assembly or compromising the water tight seals which also protect against dirt. The light fixtures also support tilt angle adjustments and light fixture head adjustments. Beam distribution pattern can also be changed in some embodiments as well as power control. Beam distribution pattern, 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.

A lighting assembly, comprising a housing (2) and a lighting element (6). The housing (2) is manufactured by extrusion from at least one flexible material, and comprises a first housing wall (21), a second housing wall (22) and a third housing wall (23). The first housing wall (21) is pivotably connected to the second housing wall (22) by means of a first flexible hinge (31), and the second housing wall (22) is pivotably connected to the third housing wall (23) by means of a second flexible hinge (32). The lighting element (6) is located inside the housing (2), and arranged to emit light out from the housing (2). The housing (2) comprises locking means for releasably locking a free edge of the first housing wall (21) to a free edge of the third housing wall (23) to arrange the housing (2) in an operating position, the locking means comprising a first locking member (81) formed in the first housing wall (21), and a second locking member (82) formed in the third housing wall (23) and arranged to cooperate with the first locking member (81). The housing (2) is manufactured in one extrusion process, the material of the third housing wall (23) is translucent, and the lighting element (6) is arranged to emit light out from the housing (2) through the third housing wall (23).

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.

A light emitting diode (LED) tube lamp configured to receive an external driving signal includes an LED module for emitting light, the LED module comprising an LED unit comprising an LED; a rectifying circuit for rectifying the external driving signal to produce a rectified signal, the rectifying circuit having a first output terminal and a second output terminal for outputting the rectified signal; a filtering circuit connected to the LED module, and configured to provide a filtered signal for the LED unit; and a protection circuit for providing protection for the LED tube lamp. The protection circuit includes a voltage divider comprising two elements connected in series between the first and second output terminals of the rectifying circuit, for producing a signal at a connection node between the two elements; and a control circuit coupled to the connection node between the two elements, for receiving, and detecting a state of, the signal at the connection node. The control circuit includes or is coupled to a switching circuit coupled to the rectifying circuit, and the switching circuit is configured to be triggered on or off by the detected state, upon the external driving signal being input to the LED tube lamp, to allow discontinuous current to flow through the LED unit.

An LED light bulb with integrated power supply, and which may incorporate integrated communications and processing functions. The LED light bulb is designed to be efficiently manufactured in mass quantities using automated assembly techniques, and is constructed to exhibit the spatial light pattern of a regular incandescent bulb as closely as possible. Where communications and processing functions are integrated, the LED light bulb is able to communicate via wireless communications to a mobile phone, notebook, tablet, or other computing device.

A modular track light includes an electrical box and an adaptor that links the modular track light to a track. This adaptor connects to the electrical box through one or more rotating components. The electrical box has a groove with a power supply plate therein. The power supply plate is slidably removable from a power consumption plate which is attached to a fixture through one or more additional rotating components. When the power consumption plate is fastened to the power supply plate, an electrode clip on the power consumption plate engages an electrode contact point on the power supply plate, creating an electrical connection between the electrical box and the fixture. When these plates are separated, the electrode clip disengages the electrode contact point, disconnecting the electrical box and the fixture. The modular track light is easy to replace and can fulfill the demands of different applications.

A sports lighting fixture including a single cast body which combines the functions of the base, heatsink, reflector housing, and interconnection gaskets, with many cast female holes that are later tapped with threads to eliminate the need for any nuts as fasteners. As a result, the single body becomes multi-functional. Channels may be cast into the single piece body to allow for heat pipes to be press fit. Several locations on the body may include tapped holes to attach mounting hardware (lens retainer), visors, power supply, and LED array printed circuit board. The body includes a cavity to receive a reflector. The reflector may be a single unit or segmented. The cavity may alternatively be coated with reflective material. The body incudes heat fins which extend from the back of the fixture and transition forward around the reflector cavity toward a front opening.

A sports lighting fixture including a single cast body which combines the functions of the base, heatsink, reflector housing, and interconnection gaskets, with many cast female holes that are later tapped with threads to eliminate the need for any nuts as fasteners. As a result, the single body becomes multi-functional. Channels may be cast into the single piece body to allow for heat pipes to be press fit. Several locations on the body may include tapped holes to attach mounting hardware (lens retainer), visors, power supply, and LED array printed circuit board. The body includes a cavity to receive a reflector. The reflector may be a single unit or segmented. The cavity may alternatively be coated with reflective material. The body incudes heat fins which extend from the back of the fixture and transition forward around the reflector cavity toward a front opening.

Apparatus and methods of attaching accessories to LED lamps and for providing active accessories in LED lamps are disclosed. The active accessories include single-function active accessories as well as multi-function active accessories.

A luminaire includes a wall assembly, a support, and a door. The wall assembly has a first side wall, a second side wall, a first end wall connected to the first and second side walls, and a second end wall connected to the first and second side walls. The support is connected to the wall assembly. The door includes a lens and is connected to the wall assembly. The door is moveable between an open position and a closed position. The side walls and end walls can be formed with various lengths and selectively connected together to form different sized wall assemblies.