A lighting and energy conservation system for low temperature applications includes LEDs as a light source. The LEDs are provided in a modular LED light fixture. The fixture includes a frame supporting a reflector having a plurality of elongated channels. Mounting strips are removably installed in each of the elongated channels, and LEDs are mounted on each of the mounting strips. A separate power control device is associated with each of the mounting strips, so that a total light output intensity and profile of the fixture can be individually customized by selectively adjusting the power control device for each of the mounting strips.

A lighting module for illuminating cultivated crops in indoor farming comprises at least one monolithic efficiency enhancing optical element (EEOE) further comprising: (a) a front portion comprising a spectrum conversion layer; (b) an optically transparent middle body portion having at least one light source embedded there within and configured to emit spectrally controllable radiation; and (c) a back portion configured to reflect the radiation emitted by the spectrum conversion layer to the cultivated crops. The back portion has a central area being adjacent to the optically transparent middle body portion configured for reflecting radiation propagating within the optically transparent middle body portion and a peripheral area configured for reflecting radiation emerged from the optically transparent middle body portion via the side surface.

A luminaire includes a light emitter and a housing connected to a heat sink. The housing is made from two different types of panels and retains one or more control components. The luminaire can also include a heat sink which connects the housing and the light emitter.

A high bay luminaire includes a heat sink having a substantially disc-shaped configuration. A light emitter is connected to the heat sink. A reflector is connected to the heat sink. A yoke is connected to the heat sink. The yoke has a first arm, a second arm, and a top bar. A driver is connected to the yoke so that the driver extends between the first arm and the second arm.

Embodiments of the present invention are related to a lamp assembly that may have a base unit that includes a base, a power supply housing, a power supply, and a power supply cover. The base unit may be operable to detachably engage a lamp unit to form a functional lighting device. Furthermore, the base unit may be operable to be interchanged with a plurality of lamp units.

A wall wash light fixture includes a housing having an upper wall, a first side wall, and a second side wall at least partially defining an interior. The first side wall and the second side wall each include a first mounting feature having a projection extending into the interior. A mounting bracket is positioned in the interior and releasably connected to the housing. A light emitter is connected to the mounting bracket. A lens has a base, a first arm extending from the base, and a second arm extending from the base. The first and second arms each include a second mounting feature configured to mate with the first mounting feature to releasably connect the lens to the housing.

The present invention provides a positioning device for an optical membrane that includes at least one positioning hole formed on the optical membrane and at least one positioning pole interposed into the positioning hole respectively, the optical membrane is fixed onto a carrying substrate by traversing said positioning holes by said positioning poles, wherein the profile of each positioning hole extending in corresponding position in the expansion and shrink direction of the optical membrane. A certain width could be reserved in the positioning hole to allow the optical membrane expand and shrink freely at each fixing point and the positioning pole cannot interfere with the positioning hole at the moment of the optical membrane expands and shrinks to cause bending, thus to guarantee flatness of the optical membranes and improve the quality of the backlight module.

A lighting device may be provided that includes: a housing having a top opening and a bottom opening; an optical plate disposed in the top opening; heat sink disposed in the bottom opening; a driving unit which is received in the housing, disposed between the optical plate and the heat sink and receives external electric power; and light source which is received in the housing, disposed between the optical plate and the driving unit, spatially separated from the driving unit and is electrically connected to the driving unit.

A waterproof socket-type halogen lamp for a livestock barn comprises a fixing body forming a hollow part, a side plate finishing the outside of the fixing body, a contact point, a wire, an annular insulator insulating the fixing body, a spring which is embedded in the hollow part and of which an outer side is supported by the side plate, an inner side supports the outer side of the annular insulator to provide restoration force while supporting one terminal of the tube halogen lamp through the contact point, and an inner waterproof packing which prevents moisture or dust from penetrating to the inner end of the fixing body and has a closed curve shape with a terminal passing groove through which a lamp terminal housing passes, and a tube halogen lamp in which lamp terminals at both ends are connected with the contact point by two socket parts.

Disclosed is a waterproof LED light string that provides outdoor lighting in a simple and reliable manner. Waterproof bulb assemblies are used with replaceable LED light sources. The bulb assemblies are easily suspended from a rope or wire, screwed to a support, or magnetically supported from a ferrous metal support. Duplicate circuitry in the LED light source allows the LED light source to be connected in either direction.