An LED lamp and it power source module are provided. The LED lamp includes an LED module and a power source module. The power source module includes two rectifying circuits, a filtering capacitor, a plurality of fuses, two filament-simulating circuits, and a discharge device. Each of the filament-simulating circuits is configured to allow a current to flow from one pin to the other pin via the corresponding first and second filament-simulating circuits during a pre-heat process executed by a ballast.

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.

A light-emitting diode (LED) tube lamp and an electric leakage protection circuit are provided. The LED tube lamp. The LED tube lamp includes a leakage detecting module and a driving module comprising a Type A+B driving circuit. The leakage detecting module is connected with a power supply. The driving module is electrically connected with the leakage detecting module. The leakage detecting module detects a signal related to the output current of the power supply, and when the signal related to the output current of the power supply exceeds a reference signal, the leakage detecting module limits the current on a power loop connected to the power supply by periodically turning off a switch electrically connected to the power loop in series.

A light-emitting diode (LED) tube lamp and an electric leakage protection circuit are provided. The LED tube lamp. The LED tube lamp includes a leakage detecting module and a driving module comprising a Type A+B driving circuit. The leakage detecting module is connected with a power supply. The driving module is electrically connected with the leakage detecting module. The leakage detecting module detects a signal related to the output current of the power supply, and when the signal related to the output current of the power supply exceeds a reference signal, the leakage detecting module limits the current on a power loop connected to the power supply by periodically turning off a switch electrically connected to the power loop in series.

An end cap for mounting an LED support in a sign cabinet comprises a support-mating portion for mating with an LED support, the support-mating portion including a hollow portion into which an LED support can be inserted and a protruding portion that protrudes into the LED support; and a cabinet-contacting portion opposite to the support-mating portion, the cabinet-contacting portion including a cup section for contacting the cabinet and supporting the end cap and LED support within the cabinet.

An illuminating device has an illuminating assembly and a holding base. The illuminating assembly has a connection element mounted on a top of the illuminating assembly and has a threaded stub formed on and protruding from a top of the connection element. The holding base is connected with the illuminating assembly and has a base body and a nut. The base body a central hole, two fixing holes, and two fasteners. The central hole is defined through the base body and through which the threaded stub of the connection element extends. The fixing holes are defined through the holding base. The fasteners are mounted respectively through the two fixing holes and are adapted to be securely attached to a ceiling or a wall. The nut is screwed with the threaded stub on the connection element.

A lamp connector includes an insulating connector body, a first pressing cover, and a second pressing cover. The insulating connector body includes a first electrical connection part, a second electrical connection part, and an electrical connection structure; the first electrical connection part includes a first base, and a first end of the first pressing cover is mounted on the first base through a first rotating shaft structure, a second end of the first pressing cover is fixed to the first base through a first fixing structure. The second electrical connection part includes a second base, and a third end of the second pressing cover is mounted on the second base through a second rotating shaft structure, a fourth end of the second pressing cover is fixed to the second base through a second fixing structure.

The present invention provides a tri-proof lamp, which comprises two swivel covers, two end caps, two power guide slots, two power supply circuits, a light source unit and a lamp cover; the lamp cover has openings at both ends; the power guide slots are located inside the lamp cover; the power supply circuits are located at the power guide slots; the light source unit is located inside the lamp cover and is electrically connected to the power supply circuits; the end caps are located at the openings of the lamp cover; the swivel covers are located at the end caps.

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.