Abstract: A system for enabling controlled plant growth of plants in containers includes linear tracks spaced apart from each other by intervening supporting plates. Each track includes an array of blue and red LEDs affixed to heat sink that can slide along the track to be positioned in a desired arrangement to the container beneath it. A controller for the LEDs is positioned between every other pair of tracks to control adjacent arrays of LEDs. The controller controls the LEDs to provide light to the plants in the containers of desired intensity and wavelength.

Abstract: An LED light engine apparatus is disclosed. The apparatus may provide a simplified, modular method of retrofitting existing luminaires with high-brightness LEDs. The physical structure and method of mounting to the luminaire may enable the light engine to direct the light output such that a wide variety of light output patterns can be achieved in many cases without the need for custom reflectors or optics. The compact size and method and use of heat pipes for heat sinking to the luminaire may enable one or more assemblies to be placed into a luminaire, achieving higher levels of illumination than could be done with LEDs in the prior art.

Abstract: A modified screw-in (Edison) type base for LED lighting devices that enables directional LED devices to be used in existing sockets. A movable center contact in a standard Edison type threaded base that enables the base to be screwed into a socket to make electrical contact while allowing the base to be rotated at least a half turn to allow a directional LED device to be aimed were the light is desired. The modified screw-type base that has a movable mount enabling a directional LED device to be firmly screwed into a standard bulb socket, then rotated to aim the light where it is desired.