A light-emitting diode (LED) luminaire assembly includes a mounting module having a cavity. The luminaire assembly also includes an LED assembly coupled to the mounting module at an end of the cavity, and a driver mounted on a driver plate and configured to provide electricity to the LED assembly, the driver plate coupled to the mounting module. The luminaire assembly further includes one or more reduced thickness sections provided on a series path of thermal conduction between the LED assembly and the mounting module, to facilitate decreased conductive heat transfer therebetween.

An apparatus, system, and method for lighting effects, including simulating a flame. A three dimensional carrier includes an array of a plurality of light sources distributed on it. A control circuit coordinates on/off of the light sources in a manner to simulate a jumping flame. In one embodiment, the three dimensional carrier and LEDs are encapsulated in an at least partially light transmissive cover. This light modular engine includes a control circuit and an interface to electrical power. The system can include the light engine in a light fixture such as an architectural fixture. The methodology can include a sequence of on/off and brightness variations for the array of light sources.

An LED tube lamp and an impedance detection method thereof are provided. The LED tube lamp includes a power supply module comprising an impedance detection controller, configured to perform, before the LED tube lamp being lighted up, an impedance detection to determine whether the LED tube lamp is electrically connected to a foreign external impedance in series. When the LED tube lamp is connected to the foreign external impedance in series, the impedance detection controller causes at least two transient variations to an operating current of the LED tube lamp and limits the operating current of the LED tube lamp to not exceed 5 MIU in root-mean-square (RMS), in which a duration of each transient variation does not exceed 1 millisecond when the impedance detection controller performs the impedance detection.

A modular light assembly having a control housing surrounding a power driver and at least one modular component. The modular component includes two side portions, a plurality of ribs extending between the two side portions to form a grated portion, and a flat portion configured to receive a COB LED. The lighting assembly may also comprise a video assembly having a camera and control circuitry provided within the lighting and video assembly for remotely controlling the camera.

An illuminating device comprises a light source, a lens holder, and a spherical modulator. The lens holder has a concave part and a blocking part surrounding the concave part. The concave part has an aperture on the bottom. The spherical modulator contains materials having refractive indexes ranging from 1.3 to 2.7. The lens holder is located between the light source and the spherical modulator. The spherical modulator is disposed on the concave part of the lens holder and covers the aperture. The light source provides light towards the aperture. The light source and the aperture are aligned to an optical axis of the spherical modulator.

A high-lumen light-emitting diode (LED) luminaire assembly in a harsh and hazardous environment is provided. The luminaire assembly includes an integrated mounting module manufactured as a single piece and including a first side and a second side opposite the first side. The luminaire assembly also includes an LED assembly coupled to the mounting module at the second side of the mounting module, and a driver configured to provide electricity to the LED assembly. The luminaire assembly further includes a driver cover sized to cover the driver and coupled to the mounting module at the first side of the mounting module. The driver and the LED assembly are operable within a target peak temperature limit for the hazardous environment.

An architectural block may be arranged with a front face separated from a back face by a border configured with a beveled surface comprising an aperture extending into a space between the front face and the back face. The aperture and beveled surface can each be configured to secure a light strip around the border and a light source of the light strip in the aperture.

A hazardous location light source module includes a metal base carrier having a light-module support surface on its upper side and a mounting stem on its lower side. The light-module support surface supports a light-module substrate mounting one or more light-emitting devices. The mounting stem is configured for mounting the light source module to a modular hazardous location light source assembly. A wiring port extending through the mounting stem to the base carrier upper side receives electrical wiring that connects electrically to the light-emitting device(s). A main-lens support surface on the base carrier upper side supports a light-transmitting main lens that comprises chemically strengthened glass and has a maximum dimension to maximum thickness ratio of not less than approximately 40:1. The main lens is permanently secured to the base carrier by virtue of a base carrier periphery being deformed into a lip that folds over to capture the main lens.

An LED tube lamp and an impedance detection method thereof are provided. The LED tube lamp includes a power supply module comprising an impedance detection controller, configured to perform, before the LED tube lamp being lighted up, an impedance detection to determine whether the LED tube lamp is electrically connected to a foreign external impedance in series. When the LED tube lamp is connected to the foreign external impedance in series, the impedance detection controller causes at least two transient variations to an operating current of the LED tube lamp and limits the operating current of the LED tube lamp to not exceed 5 MIU in root-mean-square (RMS), in which a duration of each transient variation does not exceed 1 millisecond when the impedance detection controller performs the impedance detection.

An LED tube lamp comprises a glass tube, two end caps coupled to a respective end of the glass tube, an LED light strip attached to an inner circumferential surface of the glass tube, a protective layer disposed on a surface of the LED light strip, a plurality of LED light sources mounted on the LED light strip, two first soldering pads arranged at an end of the LED light strip, two notches formed at an edge of the end of the LED light strip, a power supply module configured to drive the plurality of LED light sources. The protective layer comprises two openings to expose the two first soldering pads. The power supply module comprises a printed circuit board comprising two second soldering pads and each of the two first soldering pad soldered to the respective second soldering pad by a solder. The solder is disposed on the first soldering pad, the corresponding second soldering pad and in the corresponding notch. The power supply module comprises a rectifying circuit and a filtering circuit coupled to the rectifying circuit.