The present disclosure discloses a lighting lamp including a casing, a heat dissipating plate, heat dissipating fins, a light source plate, a power supply and a light transmitting member. The heat dissipating plate is spaced from the casing to form an annular passage. The heat dissipating fins are spaced along a circumference of a back side of the heat dissipating plate. A portion of each heat dissipating fin is located within the annular passage. The light source plate and the light transmitting member are located on a front side of the heat dissipating plate in sequence. The power supply is located above the back side of the heat dissipating plate. Heat generated by the light source plate and the power supply is conducted to the annular passage and is then carried away by air flow in the annular passage. The lighting lamp has high structural strength and high heat dissipation efficiency.

Disclosed is a light intensity signal transmitting device based on a high-speed LED array. The light intensity signal transmitting device includes an LED array and a control board card; through a novel arrangement and driving mode, the LED array has a high-speed modulation characteristic and can transmit high-bit light intensity information at the switching speed of single-point LEDs; the control board card performs high-speed display by gating an I/O port of the LED array, and is used as a light intensity signal transmitting end to transmit a light signal. According to the light intensity signal transmitting device, on the premise that the switching rate of the LED array is ensured, multi-bit binary data transmission is realized, and the transmission rate is improved.

An annular LED grow light is disclosed, which comprises a radiator, a light source board, and a power supply box. The light source board is composed of a PCB light board and a plurality of LED lamp beads, wherein the LED lamp beads are arranged on the PCB light board in an annular array about a center. The beneficial effects of the present disclosure are: the photosynthetic photon flux density (PPFD) is distributed more evenly after the LED lamp beads are arranged in an annular array about the center, thus the effective irradiated area is larger, and the cost has been saved.

A jewelry lighting lamp has a lighting part, a rotating part and a mounting part, the mounting part has a lamp barrel which accommodates the lighting part and rotating part. The rotating part has a driving motor, which drives the lighting part to rotate along the central axis of the lamp barrel; the lighting part has a main light source arranged on the central axis and one or more secondary light sources arranged around the main light source, the main light source and the secondary light source are driven by the rotating part to rotate along the central axis circumferentially. A jewelry lighting method using the jewelry lighting lamp is also provided. By varying luminance, the lamp solves the problem of visible light and shadows at the edge of the aperture when there are main and auxiliary light sources with different luminance.

The present disclosure provides a lighting device including a first lighting unit including a plurality of first light sources arranged on a first flat or curved surface, and configured to implement lighting of a first illuminance and of a first color, a second lighting unit including a plurality of second light sources arranged on a second flat or curved surface at least partially inclined with respect to the first lighting unit, the second lighting unit surrounding at least a part of the first lighting unit, and configured to implement lighting of a second illuminance at least partially different from the first illuminance and of a second color, at least one opening formed to penetrate through the first lighting unit, and at least one third lighting unit including a plurality of third light sources arranged on a third flat or curved surface, and configured to implement lighting of a third illuminance higher than the first illuminance and of a third color through the opening. The second lighting unit may be configured to implement the lighting of the second illuminance and the second color in conjunction with the third lighting unit.

A non-unitary light fixture having a housing, neck and wall panel that is affixed to a wall or other supporting structure. The fixture includes a separable neck that mounts to the housing and wall panel on opposite ends with a water-tight seal created by a flange on each end of the neck. The flange overlaps the perimeter of respective mounting apertures within the housing and wall panel and thereby prevents water from entering either the housing or wall panel. The fixture further includes a tube extending between the housing and wall panel for routing electrical wires to a lighting assembly housed within the shade.

A power tool includes: a motor; an output part configured to be rotated around a rotational axis in response to energization of the motor; a plurality of lights disposed spaced apart around the output part; and an optical member having a refractive surface that refracts, radially outward of (away from) the rotational axis, illumination light emitted from a light-emitting surface of one of the lights.

A lighting assembly and a lighting lamp. The lighting assembly includes a light source assembly and a connection assembly. The light source assembly includes a casing, a light source plate arranged on the casing, light emitting units arranged on the light source plate, and a first electrical terminal electrically connected with the light source plate. The first electrical terminal is connected to the casing. The connection assembly includes a bracket, a connection rod mounted inside the bracket, and a second electrical terminal arranged at an end of the connection rod. The first electrical terminal and the second electrical terminal are in plugging and running fit to supply power to the light emitting units. A rotating shaft of the light source assembly and the connection assembly is parallel to an axis of the connection rod.

Methods and apparatus for providing circadian-friendly LED light sources are disclosed. A light source is formed to include a first LED emission (e.g., one or more LEDs emitting a first spectrum) and a second LED emission (e.g., one or more LEDs emitting a second spectrum) wherein the first and second LED emissions are combined in a first ratio and in a second ratio such that while changing from the first ratio to the second ratio the relative circadian stimulation is varied while maintaining a color rendering index above 80.

Described herein is an illuminating device with reflector. Said device includes a heat sink insert moulded cylindrical plastic housing, and a circular metal core printed circuit board, MCPCB, mounted on a circular slot provided on a top inner end of the housing, the circular MCPCB having light emitting diodes (LEDs), wherein LEDs mounted in a circular manner near peripheral region of a top surface of the MCPCB and having electronic components mounted in a central region of the top surface of the MCPCB. Further said device includes a cylindrical reflector fixed on the top surface of the MCPCB with its cylindrical wall lying between the LEDs and the electronic components; and a diffuser connecting a top surface of the cylindrical reflector with the top inner end of the housing, wherein lower end of said plastic housing connected with a holder.