The present disclosure is directed to wallpacks containing at least one light source, such as a light-emitting diode (LED). The wallpack light fixtures disclosed herein generally contain a housing, at least one light source, a power supply, and a plurality of heat sink fins.

A light assembly may comprise a heatsink, a plurality of light emitting diodes, and a lens. The heatsink may include a first surface and a second surface opposite the first surface. The second surface may define an airflow path extending from a first end of the heatsink to a second end of the heatsink. The plurality of light emitting diodes may be coupled to the first surface of the heatsink. The lens may be located over the plurality of light emitting diodes and may contact the heatsink.

The partially lit T-bar includes a spine with a rest shelf at a lower portion thereof. The rest shelf supports adjacent ceiling tiles. The under surface of the rest shelf includes a lighting module on a portion and a plain unlit undersurface on other portions. Additional T-bars which are shorter, and typically fully lit or fully unlit and half the length of the partially lit T-bar are also provided which can attach at ends or near a midpoint of the partially lit T-bar and typically perpendicularly thereto. A great variety of lighting patterns in a dropped ceiling is thus facilitated. Each of the T-bars preferably also includes a heat sink on an upper portion of the spine and also preferably a lower heat sink on an upper portion of the rest shelf. Heat associated with the light element of the T-bar can thus be drawn away from a space below the ceiling.

The partially lit T-bar includes a spine with a rest shelf at a lower portion thereof. The rest shelf supports adjacent ceiling tiles. The under surface of the rest shelf includes a lighting module on a portion and a plain unlit undersurface on other portions. Additional T-bars which are shorter, and typically fully lit or fully unlit and half the length of the partially lit T-bar are also provided which can attach at ends or near a midpoint of the partially lit T-bar and typically perpendicularly thereto. A great variety of lighting patterns in a dropped ceiling is thus facilitated. Each of the T-bars preferably also includes a heat sink on an upper portion of the spine and also preferably a lower heat sink on an upper portion of the rest shelf. Heat associated with the light element of the T-bar can thus be drawn away from a space below the ceiling.

A light device including a housing having at least one wall that defines an internal cavity. A heat sink is attached to the housing. The heat sink includes a body, a plurality of mat fins disposed about a periphery of a body, and a plurality of pin fins disposed in staggered rows on a central portion of a face of the body. The plurality of mat fins direct air in a predetermined direction to the central portion and the plurality of pin fins define a plurality of tortuous air paths along the central portion.

A light device including a housing having at least one wall that defines an internal cavity. A heat sink is attached to the housing. The heat sink includes a body, a plurality of mat fins disposed about a periphery of a body, and a plurality of pin fins disposed in staggered rows on a central portion of a face of the body. The plurality of mat fins direct air in a predetermined direction to the central portion and the plurality of pin fins define a plurality of tortuous air paths along the central portion.

A material (such as potassium hydroxide or ammonia) capable of reacting with ambient carbon dioxide to produce fertilizer is placed in the path of ambient air movement. Desirably the material is associated with a fabric which in turn is associated with a vane of a vertical axis wind turbine, the turbine performing useful work as well as supporting the material which produces a fertilizer. A misting system controlled by a controller may automatically apply a water mist to the material if the humidity is below a predetermined level. The fabric with produced nitrogen and/or potassium fertilizer may be placed directly into contact with soil, or shredded first, or burned to produce energy and an ash (and the ash applied to the soil). The wind turbine may have a convenient, versatile mounting system with three adjustable legs supporting a central component, and the spokes of the wind turbine may be slotted for easy assembly with vanes.

Provided is a display device which has improved heat dissipation efficiency. A display device according to the present invention is provided with a display unit, a circuit board which is positioned in the rear of the display unit, a heat dissipation member which is positioned in the rear of the circuit board and is capable of dissipating the heat of the circuit board, and a case body which contains at least the heat dissipation member. The heat dissipation member has a plurality of heat dissipation pieces which protrude to the outside of the case body through an opening that is provided in the case body, and which extend in the vertical direction, and the opening has an inclined surface, which is inclined upwardly, in a portion that faces the top of each heat dissipation piece.

Provided is a display device which has improved heat dissipation efficiency. A display device according to the present invention is provided with a display unit, a circuit board which is positioned in the rear of the display unit, a heat dissipation member which is positioned in the rear of the circuit board and is capable of dissipating the heat of the circuit board, and a case body which contains at least the heat dissipation member. The heat dissipation member has a plurality of heat dissipation pieces which protrude to the outside of the case body through an opening that is provided in the case body, and which extend in the vertical direction, and the opening has an inclined surface, which is inclined upwardly, in a portion that faces the top of each heat dissipation piece.

A light emitting device includes a housing; a light source unit; and a cooling unit provided in the housing to discharge heat to an outside of the housing by means of a gas, the heat being generated by the light source unit. The cooling unit includes an introduction portion, a heat exchange portion, and a circulation portion that guides the gas from the introduction portion to the heat exchange portion. The circulation portion includes a first flow path receiving the gas from the introduction portion, and a second flow path receiving the gas from the first flow path, and being connected to the heat exchange portion. The first flow path includes a portion having a flow path area larger than a flow path area of the introduction portion.