A lighting fixture includes a fixture housing. A circuit board is positioned in the fixture housing. The circuit board includes a driver circuit. A plurality of light emitters are disposed on the circuit board. The light emitters are operatively connected to the driver circuit to produce a light output. A temperature sensor is disposed on the circuit board, the temperature sensor configured to measure a temperature of the circuit board and output a signal. The driver circuit is configured to reduce the light output in response to the signal from the temperature sensor.

A light emitting assembly comprising a solid state device, when and if coupleable with a power supply constructed and arranged to power the solid state device to emit from the solid state device a first wavelength radiation, and an enveloping vessel enhancing the luminescence of the solid-state device and providing a mechanism for arranging luminophoric medium in receiving relationship to said first, radiation, and which in exposure to said first radiation, is excited to responsively emit second wavelength radiation or to otherwise transfer its energy without radiation to a third radiative component. In a specific embodiment, monochromatic blue or UV light output from a light-emitting diode is converted to achromatic light without hue by packaging the diode with fluorescent organic and/or inorganic fluorescers and phosphors on the walls of the solid-state light envelope which keeps the diode and the fluorescers and phosphors under a vacuum or a rare or Noble or inert gas.

Light emitting device (LED) circuit board layouts for low profile lighting fixtures are provided. In some embodiments, the lighting fixture can include a fixture housing. The lighting fixture can include one or more LED devices disposed on a circuit board. The lighting fixture can include one or more electronic components associated with at least one of a driver circuit or a filter circuit (e.g., as part of a flicker reducing circuit) disposed on the circuit board. The one or more LED devices are disposed on a first portion of the circuit board and the electronic components are disposed on a second portion of the circuit board. The second portion of the circuit board can be spaced radially apart from a center point of the circuit board relative to the first portion.

An accessory mount mountable to a roof of a vehicle. The accessory mount has a horizontal mounting surface spaced from and above emergency warning lights. Accessories, such as spotlights, may be mounted on the horizontal mounting surfaces. The accessory mount provides a platform above the emergency warning lights allowing unobstructed view of the emergency warning lights without any possible of obstruction by the accessory mounted on the horizontal mounting surface.

An LED downlighting apparatus includes a housing with a sidewall having a front facing edge and a back facing edge positioned adjacent to a ceiling when the LED downlighting apparatus is installed in an opening of the ceiling. A depth of the sidewall is less than one inch and a thickness of at least a portion of the sidewall is less than three millimeters. An LED board and a lens are coupled to the housing. The lens is disposed with respect to the LED board such that the lens is illuminated from a back side. One or more mechanical couplers snap fit the apparatus to a junction box installed and positioned above the ceiling such that when the apparatus is snap fit to the junction box through the opening of the ceiling, the housing appears to be surface mounted to the ceiling.

The lighting apparatus includes a top cover, a light passing cover, a lens, a light source plate, and a bottom cover. The top cover has a light opening. The light passing cover is fitting the light opening. A diffusion illumination or a light beam is selected by placing the light passing cover or the lens to the top cover respectively. The light source plate is mounted with a LED module. A base plate is used for mounting the light source plate and for connecting to the top cover forming a container space. The base plate has at least one receiver socket for connecting to an external device to electrically connect the LED module.

The present disclosure provides a light source module and an illumination device which relate to the technical filed of illumination. The light source module includes a light source component and a connector piece. The connector piece is mechanically and electrically connected with the light source component, the connector piece has a mechanical connection portion and an electrical connection portion, the mechanical connection portion is mechanically connected with a base, and the electrical connection portion is electrically connected with a power supply source.

A retrofit trim lighting device is provided. In example embodiments, the retrofit trim lighting device comprises a bracket comprising an opening; at least one torsion spring secured to the bracket and configured to mount the retrofit trim lighting device within a recessed housing; a retrofit housing comprising at least one light engine; and an engagement element. The engagement element is secured to the retrofit housing through the opening of the bracket such that, when so secured, the retrofit housing and the bracket are rotatable relative to one another.

Provided are a lighting device in which adjacent lighting appliances appears continuous with inconspicuous joint therebetween, and a method for constructing a building. Each of a first lighting appliance and a second lighting appliance includes a lighting appliance body including a chassis, and a plurality of light sources, a fitting adapter disposed on the rear surface of the chassis, the fitting adapter being fitted into a mounting hole formed in a building material, and a light-transmissive cover. The first lighting appliance and the second lighting appliance are arranged adjacent to each other with respective corresponding ones of the lateral surface portions abutting against each other, The first lighting appliance includes a first coupling member disposed on the rear surface of the chassis, and the second lighting appliance includes a second coupling member disposed on the rear surface of the chassis. The first coupling member and the second coupling member are coupled on the rear surface with the first lighting appliance and the second lighting appliance adjacent to each other with the respective corresponding ones of the lateral surface portions abutting against each other.