Abstract: Lenses, such as for a light fixture including a printed circuit board and a number of light emitting diodes electrically connected to the printed circuit board, have a lens support in the form of a light guide, and a lens body associated with the light guide, wherein the lens support and the lens body are made of different materials. The lens support may be constructed from a polymer, while the lens body is glass. The light guide defines an internal reflective surface for reflecting/directing light from one or more LEDs to the lens body.

Abstract: A grow tray for supporting one or more plants has a bottom, an upwardly extending peripheral rim, and at least one drain and is defined by a plurality of associable tray segments, such as four, where each tray segment defines a portion of the bottom of the tray and at least one side defining a portion of the upwardly extending peripheral rim, a plurality of supports extending upwardly from the bottom and one or more channels defined between the supports. A stand apparatus for a grow tray has legs which support disconnectable raised beams, and a central support having a central mount which is supported by cross-supports which extend between the central mount and the beams.

Abstract: A light fixture includes a base or heat sink, a printed circuit board connected to the heat sink, a number of LEDs electrically connected to the printed circuit board, a number of lenses located over the LEDs, and a transmission member or material disposed between the number of lenses and the LEDs, such as to eliminate an air gap between the lenses and the LEDs.