An LED lighting tube including a heat-dissipating tubular envelope having an LED assembly directly affixed to an inner surface of the heat-dissipating tubular envelope. A method of making an LED lighting tube by providing a heat-dissipating tubular envelope, and affixing an LED assembly directly to an inner surface of the heat-dissipating tubular envelope with an adhesive layer. A method of providing heat-dissipation without a heat sink in an LED lighting tube by providing a heat-dissipating tubular envelope, affixing an LED assembly directly to an inner surface of the heat-dissipating tubular envelope with an adhesive layer, and dissipating heat through the heat-dissipating tubular envelope.

A light emitting diode-based bulb that includes a bracket and a housing translatably coupled with the bracket. The housing includes at least one light emitting diode (LED) unit disposed on a front face of the housing arranged to generate light in a direction away from the front face of the housing and a rear face of the housing with a heat sink thermally integrated into the housing. The heat sink including at least one heat dissipating member extending outwardly from the rear face of the housing to dissipate heat generated by the at least one light emitting diode (LED) unit. A fan is attached to the rear face of the housing, where the fan generates airflow that removes the heat generated by the least one light emitting diode unit.

A modular light emitting diode (LED) mounting configuration is provided including a light source module having a plurality of pre-packaged LEDs arranged in a serial array. The module includes a heat conductive body portion adapted to conduct heat generated by the LEDs to an adjacent heat sink. As a result, the LEDs are able to be operated with a higher current than normally allowed. Thus, brightness and performance of the LEDs is increased without decreasing the life expectancy of the LEDs. The LED modules can be used in a variety of illumination applications employing one or more modules.

An LED module for a luminaire has a downwardly directed heat sink comprising cooling fins that extend rearward from the module's front end and downward from its top wall, which has a top face that abuts the underside of a luminaire carrier plate. A circuit board carrying at least one LED is mounted on the front face, and a prism is mounted to the heat sink over the LED(s). The front (light-emitting) face of the catadioptric prism has several prominent side-by-side sections which emit beam patterns that diverge laterally and overlap in a central region. A prominent full-width upper section on the front face emits a primarily downwardly directed beam pattern to help fill in dark spots.

A lamp assembly including a housing defining an internal volume and a lamp positioned in the internal volume, the lamp including a first electrode and a second electrode, wherein the first electrode is both thermally and electrically coupled to the housing, and wherein the second electrode is thermally coupled to the housing by way of a thermally conductive, electrically insulative material and a heat transfer element.

The disclosed apparatus, systems and methods relate to a modular LED light, fixture body, junction box and sub assembly. The LED light has a unitary LED light component, a central housing and can be adapted to fit with existing sockets. Further additional twist and lock components are provided, including a twist and lock luminaire body. The LED light can be installed without tools, and can be easily replaced, and prevents the accumulation of water within the light.

A high-efficiency LED lamp is disclosed. Embodiments of the present invention provide a high-efficiency, high output solid-state lamp. The lamp includes an LED assembly, and an optical element or diffuser disposed to receive light from the LED assembly. The optical element includes a primary exit surface, wherein the primary exit surface is at least about 1.5 inches from the LED assembly. In example embodiments, the optical element is roughly cylindrical in shape, but can take other shapes and be made from various materials. An LED lamp according to some embodiments of the invention has an efficiency of at least about 150 lumens per watt. In some embodiments, the lamp has a light output of at least 1200 lumens. In some embodiments, the LED lamp produces light with a color rendering index (CRI) of at least 90 and a warm white color.

The present invention provides a method for constructing a universal LED bulb, a flange snap ring type LED bulb and a lamp. A heat conductive bracket (3) is used as the structure supporting main body to establish an optical engine core member. A thin-shelled lens snap ring (8) is used to support the optical engine core member in an auxiliary manner. An installation flange hole is provided to the lens snap ring (8), correspondingly to an installation flange hole of the heat conductive bracket (3), to surround and protect the heat conductive bracket (3). The optical engine core member is composed of the heat conductive bracket (3), an optical engine module (4), an inner snap ring (81) and a light distribution optical lens (7). An inner cover (6) is provided outside the optical engine module (4). An electric connector (11) is provided to the heat conductive bracket (3).

A light engine for a lighting fixture includes a bracket, with multiple mounting surfaces configured at different angles to form a substantially concave region, and a plurality of light emitting diode (LED) modules mounted to the multiple mounting surfaces to project an axis of a light beam from each of the plurality of LED modules along substantially a same illuminating plane. The light engine includes a first set of lenses with a first type of optical surface for focusing a first portion of the plurality of LED modules and a second set of lenses with a second type of optical surface, different than the first type, for focusing a second portion of the plurality of LED modules.

Methods and systems for thermal management of one or more LEDs are disclosed. One or more LEDs may be coupled with an external layer of a thermal ground plane according to some embodiments described herein. For example, the one or more LEDs may be electrically coupled with a circuit carrier with one or more electrically conductive traces etched therein prior to coupling with the thermal ground plane. The thermal ground plane may be charged with a working fluid and/or hermetically sealed after being coupled with the LED.