A lighting apparatus includes a circuit board and light emitting diodes (LEDs) attached to the circuit board. The LEDs are arranged in an array of row and columns and are attached to the circuit board are arranged in a single plane. A support substrate supports the circuit board. Optical elements are configured to redirect light from the plurality of LEDs. Each optical element is substantially the same as all other optical elements. Each LED is associated with a single optical element and each optical element is associated with a single LED. The lighting apparatus is configured to direct light away from the circuit board so that the light is directed so as to illuminate a substantially rectangular area that is off-center relative to the light assembly. The substantially rectangular area has an edge that is at least 14 feet in length.

An indirect troffer. Embodiments of the present invention provide a troffer-style fixture that is particularly well-suited for use with solid state light sources, such as LEDs. The troffer comprises a light engine unit that is surrounded on its perimeter by a reflective pan. A back reflector defines a reflective interior surface of the light engine. To facilitate thermal dissipation, a heat sink is disposed proximate to the back reflector. A portion of the heat sink is exposed to the ambient room environment while another portion functions as a mount surface for the light sources that faces the back reflector. One or more light sources disposed along the heat sink mount surface emit light into an interior cavity where it can be mixed and/or shaped prior to emission. In some embodiments, one or more lens plates extend from the heat sink out to the back reflector.

A cooling module for illumination device, includes: a substrate contacting a heat-generating illumination part at a lower part thereof and having an insertion groove formed on the upper surface thereof; a heat pipe which radiates the heat generated from the illumination part and includes a horizontal part inserted into the insertion groove and a vertical part vertically bent from the horizontal part and extending in a longitudinal direction; and a heat radiating plate laminated on and coupled to the vertical part of the heat pipe to promote heat radiation of the heat pipe, and including a coupling part coupled to the heat pipe, an inner fin part cut inward from the coupling part and formed to be twisted by a predetermined angle, and an outer fin part cut outward from the coupling part and formed to be twisted by a predetermined angle.

A lighting apparatus includes a cap head, a light source, a driver and a light module. The cap head has a cap housing. The light module has a light housing, a first end and a second end. The first end and the second end are located at two opposite sides of the light housing. The light source is disposed in the light housing. One of the first end and the second end is selected and detachably connected to the cap head.

A lighting apparatus includes a circuit board and light emitting diodes (LEDs) attached to the circuit board. The LEDs are arranged in an array of row and columns and are attached to the circuit board are arranged in a single plane. A support substrate supports the circuit board. Optical elements are configured to redirect light from the plurality of LEDs. Each optical element is substantially the same as all other optical elements. Each LED is associated with a single optical element and each optical element is associated with a single LED. The lighting apparatus is configured to direct light away from the circuit board so that the light is directed so as to illuminate a substantially rectangular area that is off-center relative to the light assembly. The substantially rectangular area has an edge that is at least 14 feet in length.

A compact safer tightly secured lighting system comprises an illumination element module, a terminal box, an illumination element module driver, and a junction box, wherein the illumination element module is composed of a heat sink and a lamp housing. An outer wall of a lower end of the heat sink has a circular recess provided for embedding a temperature controller. The lamp housing is composed of an external case, a reflective cup, a protection mask and a plurality of circlips having elasticity. A spacing is between the outer wall of the protection mask and the internal wall of the external case. The circlip is disposed to an outer wall of the protection mask, where one end is joined to a top end of the protection mask while another end has a tooth buckle corresponding to the internal wall of the external case. The tooth buckle stretches into the spacing to allow the circlip to locate between the external case and the protection mask so as to closely combine the protection mask and the external case. The terminal box is locked and connected by a locking mechanism.

Examples of electrical lamp fixtures for illuminating terrariums and stimulating the growth and health of reptiles, amphibians, and birds, and specifically to an improved, compact light emitting diode (LED) terrarium light apparatus are described. The lighting apparatus can incorporate one or multiple extended point source LED arrays, such as composed of high brightness LEDs of multiple wavelengths, that provide spatially and spectrally controlled light. A compact, high brightness LED terrarium light apparatus for reptiles and birds, comprises an array of multiple LED chips that provides visible light, ultraviolet light, and (optionally) infrared light, with separate control of the various spectral components.