An LED tube lamp comprises a lamp tube, a diffusive layer covered on a surface of the lamp tube, two end caps, a light strip, LED light sources on the light strip, and a power supply. Each of the two end caps is coupled to a respective end of the lamp tube. The light strip is attached to an inner circumferential surface of the lamp tube. The power supply module comprises a printed circuit board electrically connected to the light strip, a rectifying circuit and a filtering circuit coupled to the rectifying circuit. An end of the light strip is detached from the inner circumferential surface of the lamp tube and electrically connected to the printed circuit board.

A lighting device (1) is disclosed. The lighting device (1) comprises: a communication unit (10) for wireless communication between the lighting device (1) and an external device; a solid-state lighting element (3) electrically connected to the communication unit (10); a heat sink (5) in thermal contact with the solid-state lighting element (3), the heat sink (5) having a slot (5a) adapted to act as a slot antenna; and a feed antenna (11) electrically connected to the communication unit (10), the feed antenna (11) having at least one end tip arranged at the slot (5 a) so as to enable the feed antenna (11) and the slot (5a) to communicate by proximity coupling.

An LED tube lamp includes a glass lamp tube, two end caps, an LED light strip, a power supply, and a reflective film. At least a portion of an inner surface of the glass lamp tube is formed with a rough surface, and the roughness of the rough surface is higher than that of the outer surface. The glass lamp tube includes a main body region and two rear end regions, each of the two rear end regions coupled to a respective end of the main body region and each of the two end caps coupled to a respective rear end region. A length of the light strip is longer than the length of a main body region of the glass lamp tube. Each of the two end caps is coupled to a respective end of the glass lamp tube by a gel. The LED light strip is disposed on an inner surface of the glass lamp tube with a plurality of LED light sources mounted on the LED light strip.

A mode switching circuit is configured to change a signal path in a light-emitting diode (LED) tube lamp and comprises: at least one switch, configured to receive a filtered signal as a driving signal to drive an LED module in the LED tube lamp to emit light, and when a frequency of an external driving signal received by the LED tube lamp is higher than a mode switching frequency, output the driving signal to the LED module. The LED tube lamp comprises an auxiliary power module coupled to provide auxiliary power for the LED module to emit light; and the mode switching circuit is on a printed circuit board and is electrically connected to the LED module on a bendable circuit sheet in the LED tube lamp, wherein the bendable circuit sheet is disposed below the printed circuit board to be electrically connected to the printed circuit board by soldering.

An LED tube lamp comprises an LED module for emitting light; a rectifying circuit for rectifying an input external driving signal to produce a rectified signal; and a ballast interface circuit coupled to the LED module and comprising a detection circuit configured to determine that the external driving signal is a high frequency or high voltage signal when the voltage level of the rectified signal is higher than a predefined first threshold level. The ballast interface circuit causes an open circuit for the LED module when the voltage level of the rectified signal is higher than a predefined second threshold level but lower than the predefined first threshold level. And the ballast interface circuit causes current conduction in the LED module when the voltage level of the rectified signal, as based on an external driving signal from an inductive ballast, is lower than the predefined second threshold level.

A light fixture for an LED lamp having a glass bulb and at least one light-emitting diode. The glass bulb is filled with a heat-conducting gas and the at least one light-emitting diode is arranged inside the glass bulb. The heat-conducting gas in the glass bulb has a pressure of at least 2.2 bar at room temperature.

An LED light fixture, includes a bulb, a light module with at least one light emitting diode chip which is mounted on a circuit board by means of chip-on-board assembly, and a driver of the light module, wherein the light module and the driver electronics are received in the bulb. The LED light fixture may be arranged within an enclosure to form an LED lamp.

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 assembly is provided herein for a lighting fixture and for retrofitting a flush mounted light fixture to be provided with solid state lighting.

An LED light bulb includes a bulb shell, a bulb base, a stem, conductive supports, an LED filament, and a supporting arm. The bulb base is connected to the bulb shell. The stem is connected to the bulb base. The conductive supports are connected to the stem. The LED filament includes a filament body and two conductive electrodes. The conductive electrodes are at two ends of the filament body and connected to the conductive supports. The filament body is around the stem. The supporting arm is connected to the stem and the filament body. In a height direction of the LED light bulb, H is a distance from a bottom to a top of the bulb shell. A first height difference is defined between the two conductive electrodes and is from 0 to 1/10H. The filament body is curved to form a highest point and a lowest point. A second height difference is defined between the highest point and the lowest point. The first height difference is less than the second height difference.