A lighting system having a tubular, translucent housing including a light source disposed within the a recess of the housing. The light source includes one or more light-emitting elements on one or both sides. The lighting system is sized to fit within a receiving member, which may be a portion of a landscape structure or may be a stand-alone unit. Adjustment of the orientation of the housing relative to the receiving member changes the direction of light emitted by the light-emitting elements.

Embodiments herein are directed to a lighting fixture for insertion into a strut channel member. In an installed position, a light source supported by the housing of the lighting fixture is disposed at least partially within an interior volume of the strut channel member. The lighting fixture can be attached to the strut channel member by the lips of the strut channel member. When the lighting fixture is installed in the channel member, light from the light source emanates in a direction out of the channel member through the slot in the channel member. The lighting fixture may be snapped or slid into or out of place in the channel member.

The invention provides conspicuity devices and methods. A first embodiment includes a glove with at least one elongate lighting device adapted and configured to admit light having an advantageous spectral energy distribution. Additional articles of clothing are provided herein for enhanced conspicuity, such as for emergency workers and athletes.

A light-emitting diode (LED) light source includes a plurality of electricity-conducting holding elements, and each electricity-conducting holding element is made of a thin metal sheet. The bendable LED light source increases installation of sufficient number of LED dies by lengthening the length of the LED light source. The LED light source is bent to form a spring-like helical structure and then is placed inside a lamp cover. The helical LED light source is fastened on a T-shaped element by a plurality of fastening elements and the T-shaped element is fixed on an insulated holder. Accordingly, a bulb-type LED lamp is implemented.

A light fixture includes a light source, a wavelength-conversion material, and a reflector. The light source is configured to emit a first radiation, and has a front surface and a back surface. The wavelength-conversion material is arranged under the front surface and configured to convert the first radiation to a second radiation which has a first portion not able to reach the reflector and a second portion able to reach the reflector. The reflector is arranged over the back surface and configured to reflect the second portion away from the light source without passing through the wavelength-conversion material. The reflector has an end distant from the light source and is arranged in an elevation different from that of the wavelength-conversion material.

An arrangement (1) for generating white light (5), having at least two light-emitting diodes, wherein the first diode (2) is designed to generate blue light, wherein a conversion element (4) is associated with the first diode, wherein the conversion element is designed to convert a part of the blue light from the first diode into green light, and wherein the conversion element is designed to convert a part of the blue light from the first diode into red light, wherein the second diode (3) is provided to emit red light.

An LED lighting device of embodiment comprising an LED light source which generates an ultraviolet light or a visible light, an axisymmetric transparent member which is provided over the light source and which is transparent to visible light, and an axisymmetric light scattering member disposed in the transparent member apart from the light source. A distance of closest approach L.sub.2 between the light source and the light scattering member, and an area C of a light emitting surface of the light source satisfy the settled relation. A length L.sub.1 of the light scattering member, and an absorption coefficient μ (1/mm) of the light scattering member satisfy the settled relation. A diameter d.sub.1 of the bottom surface of the light scattering member, the distance of closest approach L.sub.2, and a refractive index n of the transparent member satisfy the settled relation.

A sheet light source is described that has a width in a front-to-back “x” direction, a length in a left-to-right “y” direction, and a height in a bottom-to-top “z” direction. The sheet light source includes a bottom conductive surface, a laser diode, a transparent conductive sheet, and an adhesive material portion. The laser diode is mounted on the conductive surface in the “z” direction. The transparent conductive sheet is laminated onto the laser diode and the conductive surface in the “z” direction. The adhesive material portion is located between the conductive sheet and the conductive surface, and binds the transparent conductive sheet to the laser diode and the conductive surface. The adhesive material portion further enables photons, emitted substantially in the “x” direction from the laser diode, to propagate therein to an edge and be output.

A light emitting diode based light configured for replacing a fluorescent light in a light fixture has a housing, at least one light emitting diode (LED), a power connector at a first end of the housing configured for connection to the light fixture and configured for receiving a power signal from a power source, a dimming control connector at a second end of the housing configured for receiving a dimming control signal and a power trace. The power trace is configured to carry the power signal from the power connector to the LED, and carry the dimming control signal from the dimming control connector to the power connector, such that the power signal is controlled in response to the dimming control signal.

An underwater diving light includes efficient cooling of LEDs and other internal electronics by heat transfer to ambient water. The water is in contact with a metallic face plate or puck that conducts heat via contiguous metal from an LED circuit board or LED face plate. Ambient water can enter the assembly to spaces between the face plate and an intermediary plate at the front of a housing to efficiently cool the LEDs and associated electronics. In a high-output form the light can emit 8000 lumens, and in this embodiment the battery is cooled by ambient water. The face plate or puck is interchangeable, for different lighting characteristics.