A strip of a flexible plastic has a transparent cover surface which permits passage of light and an opposed bottom surface and sides which are opaque to passage of light. A series of spaced apart light emitting diodes are positioned on the top surface in electrical contact with a pair of spaced apart, generally parallel electrical wires running along the length of the top surface and individual electric bulbs are positioned on top of each light emitting diode. When electric current flows through the electrical wires, light is transmitted from each light emitting diode through each bulb and out in a unidirectional manner.

A light fixture, for a ceiling plenum system defining an upstream space and a downstream space, includes a light-fixture base defining a light-fixture axis. First and second side walls extend toward the downstream space and are sealingly attached to the base plate and to first and second end plates. First and second legs are sealingly attached to the light-fixture base by one of a first-leg continuously welded joint and a first-leg monolithic connection. A downstream end of each leg forms a knife portion. First and second gas filters each comprise an orthogonal gas-filter frame defining an interior perimeter and an exterior perimeter. A trough with sealant affixed therein is sealingly attached to and surrounds a portion of the exterior perimeter. A trough opening faces the downstream space, with the knife portions penetrating surfaces of the sealant, forming a seal between the light-fixture base and each gas filter.

In one embodiment, a design system based on luminaires having multiple illumination panels includes first and second luminaires. Each of the first luminaires includes three illumination panels arranged in a row. Each of the second luminaires includes five illumination panels of the same size and shape, arranged in an L-shape, with a first, a second and a third panel arranged in a first row, and the third, a fourth and a fifth panel arranged in a second row at a ninety degree angle to the first row. In another embodiment, a design system based on luminaires having multiple illumination panels includes first and second luminaires. Each of the first luminaires includes three illumination panels arranged in a row. Each of the second luminaires includes nine illumination panels of the same size and shape, arranged in a grid of three rows and three columns.

A light tube with wire guide includes a hollowed tube body, two caps, a wire guide, and a plurality of wires. The two caps respectively cover two ends of the hollowed tube body. The wire guide is located at an outer side wall of one of the two caps. The wire guide includes a guiding slot communicating with the hollowed tube body. The wires are disposed in the wire guide and extended along the guiding slot. One ends of the wires are located in the hollowed tube body or located in one of the two caps, and the other ends of the wires extend to the guiding slot and are exposed out of the hollowed tube body.

A light fixture for indoor growing of horticulture products includes oppositely arranged first and second support rails with light bars extending therebetween, a power driver disposed at an interior of the one of the support rails and coupled with the light bars to diver power thereto, and a rotation element which allows the light fixture to pivot between an extended position in which the first and second support rails each extend linearly and are arranged parallel to one another, and a folded position in which a first side of the light fixture is arranged atop a second side of the light fixture and first portions of the support rails contact and lie flat against opposite second portions of the support rails.

A vertical farming layer structure comprising: an underlying support for supporting a plurality of farmed plants; a light-reflective upper surface positioned above and facing the underlying support, the light-reflective upper surface being adapted to reflect light by diffuse reflection; and a plurality of light-emitting devices positioned between the underlying support and the light-reflective upper surface, each light-emitting device being positioned to emit light along a respective optical axis oriented towards the light-reflective upper surface such that light emitted from the light-emitting device is at least partially diffusely reflected off of the light-reflective upper surface to reach the plants supported on the underlying support.

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.

A light emitting diode (LED) linear worklight that converts point light into a linear light source is disclosed. The LED linear worklight comprises a linear light device and a power handle that connect together. The power handle holds batteries and comprises an LED module. The linear light device comprises a worklight body and a lens. A transparent light pipe is positioned in a reflecting holder inside the worklight body. The reflecting holder holds the light pipe and reflects light back into the light pipe. The LED module emits light into a light receiving end of the light pipe. The received light travels through the light pipe and is emitted from a light emitting surface of the light pipe. The reflecting holder reflects some of the light emitted from the light emitting surface and directs the light toward the lens and the light exits the worklight body.

An illumination attachment apparatus for an automotive creeper is disclosed herein. The apparatus includes light sources, a rechargeable power supply source for supplying electric energy to the light sources, wiring for routing the electric energy to the light sources, cables for encasing the wiring, rails having a channel for circumscribing a portion of the creeper, and magnets disposed within each channel for magnetically attaching and detaching the apparatus to the creeper.

A lighting apparatus includes a wavelength converting apparatus. The wavelength converting apparatus includes a hollow tube and a wavelength converting material. The hollow tube has an accommodating chamber. The wavelength converting material is positioned in the accommodating chamber.