A lamp, in particular for the use in potentially explosive areas, has at least one illuminant, one cooling device for the illuminant and one lamp enclosure with a light emission opening, whereby at least the illuminant and the cooling device are arranged in the lamp enclosure. To improve a heat transmission from the illuminant, in particular from the cooling device to the lamp enclosure, in a simple and safe way without the additional use of a heat-conducting paste or the like, whereby respective manufacturing tolerances that can negatively influence a good thermal contact shall no longer be considered, the cooling device for heat transmission to the lamp enclosure has a longitudinally variable cooling element or is formed as such.

A light includes a body, a front housing secured to a front end of the body, a translating retainer rotatably engaged with the front housing, a slip ring positioned around the front housing and between the translating member and the front end of the body, a compressible ring positioned around the front housing and between the slip ring and the front end of the body, a lens mounted to the front housing, an electronic assembly, and a light emitting element in electrical communication with the electronic assembly and positioned within the lens. Rotation of the translating retainer in a first direction causes the translating retainer to drive the slip ring toward the front end of the body, compressing the compressible ring and causing the compressible ring to bulge outward to contact, and removably engage, an inner wall of a pipe or conduit that the light is positioned in.

This disclosure relates to an alternating current (AC) LED lamp with a replaceable LED light source in the field of lighting. It comprises the LED light source, a light source box and a heat radiator arranged at the bottom of the light source box. As the light source box and the heat radiator adopt the dismountable and replaceable threaded connection structure according to the design, a professional repairman is not required, a user can directly dismount and replace a damaged light source box by himself/herself, and the maintenance is convenient; the plug-and-play function is realized; the cost of repairing and purchasing the lamp is saved; and moreover, the soft heat conduction sheet is additionally arranged, so that the heat of the LED light source can be smoothly conducted to the heat radiator from top to bottom.

According to an aspect of the instant invention, an LED Engine is provided preferably for use with a Fresnel fixture having a globe socket wherein the LED Engine is plug compatible with the globe socket. A Fresnel lighting fixture generally includes a housing; a Fresnel lens supported from the housing; a focus rail; and a globe socket supported by the focus rail. The globe socket electrically receives a Fresnel globe or bulb. The plug compatible LED Engine of the present disclosure is positionable to be inserted in the globe socket of the existing Fresnel fixture thereby replacing the incandescent bulb. Alternatively, the globe socket may be removed and the LED Engine mounted to the focus rail.

The present invention relates to a lamp unit employing a high-efficiency heat radiation solution for an LED light source, and a lighting device and a vehicle lamp using the same, and the lamp unit comprises an LED light source, a support part for supporting the LED light source, a transfer part facing the LED light source, and a connection part for connecting the support part and the transfer part, wherein the support part, the connection part and the transfer part are provided as thermal conductive members and emit heat of the LED light source to the outside in the form of conduction energy and radiation energy.

A heat dissipation device for a lamp includes a housing, a heat sink module and a light source module. The housing includes an opening. The heat sink module is received in the housing. The heat sink module includes a heat sink member which has a substrate. The substrate includes a first area and a second area surrounding a perimeter of the first area. One side of the first area includes an installation surface, and first hollow tubes extend from the other side of the first area. Second hollow tubes extend from two opposite sides of the second area. The light source module is thermally adhered to the installation surface and exposed from the opening. The heat of the light source module is expelled to the outside by means of the first hollow tubes and the second hollow tube to achieve excellent heat dissipation.

A light lamp for a vehicle includes a plurality of light function modules, each of the plurality of light function modules including: a light source module including a light source; a light distribution module disposed in front of the light source module and configured to distribute light emitted by the light source module; and a dissipation module disposed behind the light source module and configured to dissipate heat generated by the light source, wherein the light source module further includes: a light source lens; a light emission body configured to accommodate the light source lens; a light emission cover configured to cover the light emission body; a phosphor assembly connected to the light emission body; and a reflection unit disposed in front of the light source lens and configured to receive the light passing through the light source lens and to reflect the received light toward the light source lens.

A light lamp for vehicle includes a plurality of light function modules, each of the plurality of light function modules including: a light source module including a light source; a dissipation module disposed behind the light source module and configured to dissipate heat generated by the light source; and a light distribution module disposed in front of the light source module and configured to distribute light emitted by the light source module, the light distribution module including: a focusing lens configured to concentrate incident light; a shield retainer assembly configured to block at least part of light output by the focusing lens and to reflect at least part of light that is not blocked; a light distribution case configured to accommodate the focusing lens and the shield retainer assembly; and a light distribution cover configured to cover the light distribution case.

A searchlight assembly has a first housing portion and a second housing portion, wherein each of the first housing portion and the second housing portion has operably secured to form an enclosed space: a heat sink, a reflector and a lens. The first housing portion and the second housing portion being are joined to form a housing assembly. The first housing portion heat sink and the second housing portion heat sink are disposed adjacent to one another and form a cooling medium flow path there between, and the heat sink elements of each heat sink thermally communicate with the flow path. A first LED is directly thermally coupled to the heat sink within in the first housing portion enclosed space and a second LED is directly thermally coupled to the heat sink within the second housing portion enclosed space.

It is an object to provide a lighting device having a simple configuration and excellent in waterproofing function. A lighting device includes a housing including a flat portion and an annular peripheral wall portion which is continuous from a periphery of the flat portion to a rear side, a light source which is arranged on the flat portion, and an optically transparent light source cover which is placed on the flat portion and covers a light-emitting surface of the light source.