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.

This application relates to an incandescent bulb-type LED lamp having a heat dissipation function. In one aspect, the LED lamp includes a globe forming an external shape of the lamp, and an LED module supported by a stem in which a gas injection portion is formed and installed inside the globe. The LED lamp may also include a power supply unit for supplying power to the LED module, and a base bonded to one side of the globe and connected to a socket to supply commercial power to the power supply unit. The LED lamp may further include a heat conduction member filled in an internal space formed by an inner surface of the base and a printed circuit board (PCB) of the power supply unit and configured to dissipate heat generated from the LED module and the power supply unit to the outside through the base.

This application relates to an incandescent bulb-type LED lamp having a heat dissipation function. In one aspect, the LED lamp includes a globe forming an external shape of the lamp, and an LED module supported by a stem in which a gas injection portion is formed and installed inside the globe. The LED lamp may also include a power supply unit for supplying power to the LED module, and a base bonded to one side of the globe and connected to a socket to supply commercial power to the power supply unit. The LED lamp may further include a heat conduction member filled in an internal space formed by an inner surface of the base and a printed circuit board (PCB) of the power supply unit and configured to dissipate heat generated from the LED module and the power supply unit to the outside through the base.

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.

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.

The present disclosure provides a multifunctional LED lamp, which includes: a main lamp body; one or more LED light-emitting modules connected with the main lamp body; a face recognition module disposed on the main lamp body; an infrared sensing module disposed on the main lamp body; a photosensitive module disposed on the main lamp body; and a control module in communication connection with the face recognition module, the infrared sensing module, and the photosensitive module. The multifunctional LED lamp includes multiple working modes, and the control module controls working states of the face recognition module, the infrared sensing module, and the photosensitive module to switch the working modes. By installing different sensors, the LED lamp of the present disclosure integrates various functions such as lighting, security warning, entertainment, lighting, health, etc., and can realize different working modes by combining different sensors.

A lighting apparatus includes a printed circuit board. A first light source and a second light source can be mounted on the printed circuit board. A first optical member can receive and redirect light from the first light source, and a second optical member can receive and redirect light from the second light source. A vent aperture can be defined in the printed circuit board, the vent aperture being positioned between the optical members. The apparatus can include first and second thermally conductive sheets thermally coupled to the printed circuit board, the first thermally conductive sheet disposed on a first back side of the first optical member, the second thermally conductive sheet disposed on a second back side of the second optical member. The apparatus can include a housing having a housing vent, the housing vent and the vent aperture defining a first convective path between the optical members.

The present invention relates to a lighting device (1, 2, 5, 6) comprising a hollow and translucent envelope (12, 22, 52) connected to a base (13, 23, 53); a light mixing element (10, 20, 30, 50, 60) arranged within the envelope (12, 22, 52); and at least one light emitting diode (11, 21, 31, 51) arranged within the envelope (12, 22, 52), arranged to emit light into the light mixing element (10, 20, 30, 50, 60) and arranged in thermal contact with the light mixing element (10, 20, 30, 50, 60). The light mixing element (10, 20, 30, 50, 60) comprises a thermally conductive and translucent ceramic material. The light emitted from the light emitting diode (11, 21, 31, 51) is mixed within the light mixing element (10, 20, 30, 50, 60), distributed from the light mixing element (10, 20, 30, 50, 60) through the thermally conductive and translucent ceramic material, and transmitted through the translucent envelope (12, 22, 52). The present invention also relates to a luminaire comprising such a lighting device (1, 2, 5, 6).

A light-emitting device including a substrate with a top surface and a bottom surface opposite to the top surface and a plurality of LED chips disposed on the top surface and configured to generate a top light visible above the top surface and a bottom light visible beneath the bottom surface, each LED chip comprising a plurality of light-emitting surfaces. The substrate has a thickness greater than 200 μm and comprises aluminum oxide, sapphire, glass, plastic, or rubber. The plurality of LED chips has an incident light with a wavelength of 420-470 nm. The top light and the bottom light have a color temperature difference of not greater than 1500K.

A light-emitting device including a substrate with a top surface and a bottom surface opposite to the top surface and a plurality of LED chips disposed on the top surface and configured to generate a top light visible above the top surface and a bottom light visible beneath the bottom surface, each LED chip comprising a plurality of light-emitting surfaces. The substrate has a thickness greater than 200 μm and comprises aluminum oxide, sapphire, glass, plastic, or rubber. The plurality of LED chips has an incident light with a wavelength of 420-470 nm. The top light and the bottom light have a color temperature difference of not greater than 1500K.