An LED filament, comprising: an enclosure; a linear array of LED devices; and an electrical connector, wherein: the enclosure includes an optically transmissive binder; and the linear of LED devices is conformally wrapped around by the enclosure to be operable to emit light when energized through the electrical connector.

An LED tube lamp with overvoltage protection capability is provided. The LED tube lamp includes a lamp tube, two external connection terminals, a rectifying circuit, a filtering circuit, an LED module, and a protection circuit. The protection circuit is coupled between two input terminals of the LED module and configured to perform overvoltage protection when determining that a voltage level between the two input terminals of the LED module reaches or is higher than a predefined voltage value, wherein the protection circuit includes a diode and the predefined voltage value is in a range of about 40V to about 600V.

A light device comprising a light emitting diode (LED) enclosed in a glass tube is described. The first closed end of the glass tube has a tapered cross section with a conical shape and a ball at the tip. The second closed end of the glass tube has a melted region encasing a pair of lead wires that pass into the lumen of the glass tube and connect to the LED.

An LED tube lamp comprises a heat-dissipating glass lamp tube, protective film attached to a surface of the glass lamp tube, an LED light strip disposed in the glass lamp tube and two end caps, each of the two end caps coupled to a respective end of the glass lamp tube. The LED light strip comprises a substantially flat LED circuit board and a plurality of LED light sources, the LED circuit board comprises a top surface and a base surface, and the plurality of LED light sources mounted on the top surface and the base surface are directly affixed to a curved inner surface of the glass lamp tube. A non-insulating adhesive layer is disposed between the base surface of the LED circuit board and the curved inner surface of the glass lamp tube and extends along a length of the LED light strip. The LED circuit board comprises a first end electrically connecting to a first connector and a second end electrically connecting to a second connector, wherein the first connector and the second connector are connectable to a light fixture through the end caps. The inner space of the glass lamp tube comprises ambient atmosphere. The plurality of LED light sources emit white light. The diameter of the lamp tube is 5/8 inch or 1 inch and a length of the glass lamp tube is 2 ft, 4 ft or 8 ft.

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.

In one embodiment, a lamp comprises an optically transmissive enclosure. An LED array is disposed in the optically transmissive enclosure operable to emit light when energized through an electrical connection. A gas is contained in the enclosure to provide thermal coupling to the LED array. The gas may include oxygen.

A solid-state lighting lamp (10) is disclosed. The solid-state lighting lamp (10) comprises a glass tube (14), an internal member at least partly arranged inside the glass tube (14), and optical means (50) arranged on the glass tube (14), completely covering an inner surface of the glass tube (14) and adapted to at least partly cloak the internal member.

A tube-shaped LED lighting device including: a substrate; a light emitting device mounted on the substrate; a heat sink having one surface on which the substrate is seated, and opposite side surfaces including a groove portion; a cover to receive the heat sink, the substrate, and the light emitting device therein, and including an overhang protruding from an inner wall of the cover to be inserted into the groove portion; and a base coupled to an end of the cover, in which the heat sink includes a substrate holding portion surrounding opposite sides of the substrate.

A LED light apparatus includes a substrate, LED modules, a driver circuit, a fluorescent layer, a connector and a light passing shell. The LED modules are mounted on the substrate. The fluorescent layer covers the driver circuit and the LED modules. The connector has a first end electrically connecting to the driver circuit. The light passing shell encapsulates the substrate, the plurality of first LED modules, the driver circuit, the first fluorescent layer and at least a part of the connector. The connector has a second end connecting to an external power source.

A method of lamp assembly that etching a glass tube body to increase a texture of the surface of the sidewall of the glass tube body, the sidewall of the glass tube body enclosing a hollow interior; and positioning a circuit board including a plurality of light emitting diodes (LEDs) within the hollow interior of the glass tube, wherein the increase in the texture of the surface increases the light diffusivity of the glass tube body.