An LED tube lamp comprises a glass lamp tube having a main body, two end caps coupled to a respective end of the tube, an LED light strip adhered to inner circumferential surface of the tube by first adhesive, a plurality of LED light sources mounted on a mounting region, a power supply module having a circuit board and a plurality of electronic components mounted on the circuit board, a diffusion layer covering on outer surface or inner surface of the tube, and a protective layer being disposed on surface of the strip and having a plurality of first openings for disposing the plurality of LED light sources. The strip comprises the mounting region and connecting region at an end of the strip. The circuit board is substantially parallel with axial direction of the tube, electrically connects to the connecting region, and stacks with a portion of the connecting region.

An LED tube lamp comprises a glass lamp tube having a main body, two end caps coupled to a respective end of the tube, an LED light strip adhered to inner circumferential surface of the tube by first adhesive, a plurality of LED light sources mounted on a mounting region, a power supply module having a circuit board and a plurality of electronic components mounted on the circuit board, a diffusion layer covering on outer surface or inner surface of the tube, and a protective layer being disposed on surface of the strip and having a plurality of first openings for disposing the plurality of LED light sources. The strip comprises the mounting region and connecting region at an end of the strip. The circuit board is substantially parallel with axial direction of the tube, electrically connects to the connecting region, and stacks with a portion of the connecting region.

Feedback is received from a plurality of devices. External data is also received. Statistical patterns of the plurality of devices are determined based on the feedback. A policy is determined based on the statistical patterns, the feedback, and the external data. The policy may include a set of rules dictating the operation of each of the plurality of devices and reducing energy consumption at the plurality of devices. Control data based on the policy is transmitted to the plurality of devices. The control data may be operative to transform the operation of the plurality of devices according to the set of rules.

A light emitting diode, LED, filament arrangement (100), comprising at least one LED filament (110) comprising an array of a plurality of light emitting diodes, LEDs. The at least one LED filament (110) is of an elongated shape, and is at least partially extending along an axis, A. The at least one LED filament comprises at least one branch (120, 121) extending from the elongated LED filament (110) and is arranged at an angle, α, to the axis A.

The invention provides a lighting device (100) comprising a vapor chamber unit (200), a heat sink (300), and a plurality of light sources (10), wherein: the vapor chamber unit (200) comprises a vapor chamber (210) defined by at least a first plate (211) and a second plate (212) having an average plate distance (d1), wherein the vapor chamber (210) comprises a first A chamber end (221) and a second chamber end (222) defining a chamber length (L1), wherein the vapor chamber unit (200) comprises (i) a first external face (231) defined by at least part of the first plate (211), wherein the first external face (231) is convex, and (ii) a second external face (232) defined by at least part of the second plate (212); the heat sink (300) is thermally coupled to the vapor chamber unit (200); and the light sources (10) are configured to generate light source light.

The invention provides a lighting device (100) comprising a vapor chamber unit (200), a heat sink (300), and a plurality of light sources (10), wherein: the vapor chamber unit (200) comprises a vapor chamber (210) defined by at least a first plate (211) and a second plate (212) having an average plate distance (d1), wherein the vapor chamber (210) comprises a first A chamber end (221) and a second chamber end (222) defining a chamber length (L1), wherein the vapor chamber unit (200) comprises (i) a first external face (231) defined by at least part of the first plate (211), wherein the first external face (231) is convex, and (ii) a second external face (232) defined by at least part of the second plate (212); the heat sink (300) is thermally coupled to the vapor chamber unit (200); and the light sources (10) are configured to generate light source light.

Apparatus and associated methods relate to an energy efficient and pollution reducing post top lamp. In an illustrative example, a replaceable light unit (RLU) includes a LED package distributed about a first axis of the RLU. The LED package, for example, may emit a light being redirected by a first optical element to generate a first optical distribution along a first optical axis in a first direction, the first optical axis being substantially parallel to the first axis. The first optical distribution may be, for example, reflected by a second optical element such that at least a portion of the light in the first optical distribution may be reflected into a second optical distribution. For example, at least fifty percent of the light in the second optical distribution may be greater than fifty degrees from the first optical axis. Various embodiments may advantageously conserve energy and/or reduce light pollution.

In various embodiments, a light emitting diode (LED) lamp is provided. The LED lamp may include a base; a first housing having a first end and a second end, the first end secured to the base; a second housing having at least in part a partially conical shape, an end of the second housing having a smaller diameter secured to the second end of the first housing; at least one LED secured within the second; driver circuitry secured within the LED flood lamp between the end of the base and the at least one LED; a reflector having a partially conical shape; and a diffuser element secured to at least one of a wider end of the reflector or the end of the second housing having the larger diameter. In some embodiments, the first or second housing may include one or more vents.

In various embodiments, a light emitting diode (LED) lamp is provided. The LED lamp may include a base; a first housing having a first end and a second end, the first end secured to the base; a second housing having at least in part a partially conical shape, an end of the second housing having a smaller diameter secured to the second end of the first housing; at least one LED secured within the second; driver circuitry secured within the LED flood lamp between the end of the base and the at least one LED; a reflector having a partially conical shape; and a diffuser element secured to at least one of a wider end of the reflector or the end of the second housing having the larger diameter. In some embodiments, the first or second housing may include one or more vents.

A lighting device including at least one light emitter to emit blue light, a green phosphor having an emission peak in a range of 500 nm to 550 nm, a yellow phosphor having an emission peak in a range of 550 nm to 600 nm, and a red phosphor having an emission peak in a range of 600 nm to 650 nm, in which the yellow phosphor and the red phosphor have different full widths at half maximum, and the full width at half maximum of the yellow phosphor is longer than that of the red phosphor, and, in an emission spectrum, an intensity of light emitted from the lighting device increases from 500 nm to 600 nm, and the intensity of light emitted from the lighting device at 700 nm is less than about 10% of the maximum intensity of light emitted from the lighting device.