A method for forming a light engine assembly includes the steps of injecting a light trough material into a mold, thereby forming a light trough including a trough body having an edge, and injecting a seal material into the mold, thereby forming a seal configured to bond with the edge of the trough body. The method further includes cooling one of the light trough material and the seal material to adhere the light trough material to the seal material, thereby forming a unitary light trough part, ejecting the light trough part, and coupling a lighting unit with the light trough part.

A controller assembly for a light fixture may include a controller housing to be received within a knockout opening of a light fixture housing from which light is emitted, and a user input assembly positioned within the controller housing. The user input assembly may include a mechanical actuator accessible through a controller opening in the controller housing, and a connector interface to be electrically connected by wiring to a driver of the light fixture, and circuitry electrically coupled to the mechanical actuator and the connector interface. The circuitry may be used to detect actuation of the mechanical actuator by a user and, in response, change a control signal from the connector interface to the driver from a first control signal to a second control signal in order change a property of the emitted light.

A controller assembly for a light fixture may include a controller housing to be received within a knockout opening of a light fixture housing from which light is emitted, and a user input assembly positioned within the controller housing. The user input assembly may include a mechanical actuator accessible through a controller opening in the controller housing, and a connector interface to be electrically connected by wiring to a driver of the light fixture, and circuitry electrically coupled to the mechanical actuator and the connector interface. The circuitry may be used to detect actuation of the mechanical actuator by a user and, in response, change a control signal from the connector interface to the driver from a first control signal to a second control signal in order change a property of the emitted light.

The present disclosure discloses an illuminating lamp, comprising a housing, a lampshade and a lamp panel. The housing is provided with a driving device, an electric power input structure and an electric power output structure, and the electric power input structure is electrically connected to the electric power output structure and the driving device respectively; the lampshade is fixedly arranged on an outer side of the housing and forms an illuminating cavity with the housing; the lamp panel is arranged in the illuminating cavity, and the driving device is connected to the lamp panel via a wire to drive the lamp panel to operate and emit light. The present disclosure mounts a plurality of illuminating lamps, it is only needed to provide a socket connected to a mains supply in a mounting environment, and mounting is very convenient.

A linear LED lamp having a body with a length between spaced first and second ends. The linear LED lamp has an elongate heat sink and a light source comprising LED emitters and a first end cap assembly at the first end of the body. The first end cap assembly has conductive power and ground pins and a support connector has conductive power and ground terminals for connecting with an external power supply and providing a grounding path for components of the lamp. The power and ground pins of the first end cap assembly are configured to engage the power and ground terminals of the support connector as an incident of the first end cap assembly moving relative to the support connector in a path that is transverse to the length of the body into an engaged position. A sleeve connector is also provided for mounting a non-power end of a linear LED lamp to a light fixture.

A linear LED lamp having a body with a length between spaced first and second ends. The linear LED lamp has an elongate heat sink and a light source comprising LED emitters and a first end cap assembly at the first end of the body. The first end cap assembly has conductive power and ground pins and a support connector has conductive power and ground terminals for connecting with an external power supply and providing a grounding path for components of the lamp. The power and ground pins of the first end cap assembly are configured to engage the power and ground terminals of the support connector as an incident of the first end cap assembly moving relative to the support connector in a path that is transverse to the length of the body into an engaged position. A sleeve connector is also provided for mounting a non-power end of a linear LED lamp to a light fixture.

A strip lamp includes a housing, a mask, a light source module and two end covers. The two end covers are arranged at both ends of the housing and form an accommodating chamber with the housing. The accommodating chamber extends along the length direction of the housing, and the light source module is accommodated in the accommodating chamber; the mask includes a light exiting part, a connection part formed by bending towards each other and extending from both sides of the light exiting part, and a pressing part formed at the end of the joint part. The first depression is formed between the joint part and the pressing part, two sides of the housing are extends towards each other to form a buckle part; the light source module includes a circuit board and a light emitting body arranged on the outer surface of the circuit board.

An LED lamp and a power source module thereof are provided. The power source module includes a switch-type DC-to-DC converter integrated with a function for detecting whether a foreign external impedance exists. The switch-type DC-to-DC converter is configured to enter an installation detection mode when the switch-type DC-to-DC converter is activated. When the switch-type DC-to-DC converter is in the installation detection mode, the switch-type DC-to-DC converter receives an external AC signal received by the LED lamp to detect whether a foreign external impedance exists based on the received signal.

An LED lamp and a power source module thereof are provided. The power source module includes a switch-type DC-to-DC converter integrated with a function for detecting whether a foreign external impedance exists. The switch-type DC-to-DC converter is configured to enter an installation detection mode when the switch-type DC-to-DC converter is activated. When the switch-type DC-to-DC converter is in the installation detection mode, the switch-type DC-to-DC converter receives an external AC signal received by the LED lamp to detect whether a foreign external impedance exists based on the received signal.

A combination for illuminating the interior of a building comprises a fixture and a retrofit kit. The fixture has a base attached to a building ceiling, the fixture having a first tombstone, and a second tombstone. The first and second tombstones are configured to receive between them a fluorescent light tube. The retrofit kit is connected to the base. The retrofit kit includes a light panel, the light panel having a first side facing the fixture and an opposite second side. The light panel resides between the first tombstone and the second tombstone, and the fixture resides above the light panel. The combination is devoid of a fluorescent light tube. The base and the light panel define between them a raceway. A light emitting diode is disposed on the second side of the light panel.