The present invention provides a bulb (100, 110, 120, 130, 140, 140) an excitation chamber (200, 210, 220, 230, 230) a ferrite core (300, 310, 310), a spool (400, 410); an assembly or subassembly of such components, and a lamp (100, 1100, 1200, 1300, 1400, 1500, 1600, 1600, 1600, 1700, 1800) for producing electromagnetic radiation, such as in the light spectrum, UV or IR.

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.

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 lighted ring for a post comprising a mounting ring securable on a column of the post, the column extending upwardly from a post base, a cylindrical light transmission module securable to the mounting ring and a light source disposed adjacent the light module. The light source provides illumination of an area adjacent the post through the chamfer. The light transmission module may include an inner wall, a catch spaced axially outward from the inner wall the catch having an inwardly facing protrusion along an upper portion of the catch, a groove extending the entire circumference of the light transmission module between the inner wall and the catch, an outer wall spaced axially outward from the catch and a chamfer along a bottom edge of the light transmission module and a light module slot extending along a portion of the inner wall.

An LED tube lamp comprises a glass tube, two end caps, an LED light strip inside the glass tube, a plurality of LED light sources on the LED light strip, a power supply module and an adhesive. The glass tube comprises a main body has an outer surface and two rear end regions respectively at two ends of the main body. The outer diameter of each of the rear end regions is less than that of the main body. Each of the end caps comprises a tubular wall sleeving over the respective rear end region and an end wall substantially perpendicular to the axial direction of the tubular wall and connected to an end of the tubular wall. The diameter of the outer surface of the main body is substantially the same as the diameter of the outer surface of the tubular wall. The power supply, comprises a rectifying circuit and a filtering circuit, is configured to drive the plurality of LED light sources. The adhesive is disposed between each of the inner surface of the tubular wall and the outer surface of each of the rear end regions.

A modular power manifold for a tube light may feature LED strips mounted in a support extrusion. A cover is provided as are two end caps with modular connectors which allow use in multiple settings. A power interface may also be provided to supply auxiliary power to additional loads.

An LED tube lamp includes an LED lamp tube, a coupling structure, one or more end caps, one or more power supplies, and an LED light strip. The end cap is connected to an end of the LED lamp tube by the coupling structure. The power supply is in the end cap. The LED light strip including one or more LED light sources is in the LED lamp tube. The LED light sources are electrically connected to the power supply via the LED light strip. The end cap includes a tube wall and an end wall. The tube wall is coaxial with the LED lamp tube and is connected to the end of the LED lamp tube. The end wall is perpendicular to an axial direction of the tube wall and is connected to an end of the tube wall away from the LED lamp tube.

An LED tube lamp includes an LED lamp tube, a coupling structure, one or more end caps, one or more power supplies, and an LED light strip. The end cap is connected to an end of the LED lamp tube by the coupling structure. The power supply is in the end cap. The LED light strip including one or more LED light sources is in the LED lamp tube. The LED light sources are electrically connected to the power supply via the LED light strip. The end cap includes a tube wall and an end wall. The tube wall is coaxial with the LED lamp tube and is connected to the end of the LED lamp tube. The end wall is perpendicular to an axial direction of the tube wall and is connected to an end of the tube wall away from the LED lamp tube.

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 configurable light fixture for photography is presented. The light fixture includes a rail with a clamp section and threaded section. A fixed jaw is removably coupled to an end of the rail in the clamp section. One or more optional sliding intermediate jaws may be slidably coupled to the rail in the clamp section below the fixed jaw to create more clamping surfaces when desired to hold more than one lighting tube. A sliding end jaw is slidably coupled to the rail in the clamp section below the sliding intermediate jaw. A wing nut is coupled to the threaded section of the rail for applying linear pressure on the sliding end jaw thereby secure a lighting tube on each of the clamping surfaces.