A method and apparatus for an adaptable vehicle light fixture is provided to activate varying light distribution patterns based upon preconfigured operation of trigger and/or power wires. One or more trigger and/or power wires connected to one or more vehicle light fixtures are preconfigured through wired and/or wireless programming to generate specified light distribution patterns that are responsive to the preconfigurations during manual operation. Wireless preconfiguration includes the use of a handheld magnetic device or smartphone. Wired preconfiguration includes the use of a vehicle-based controller area network (CAN) bus. Any preconfigured operation may be changed at any time by the user by programmably changing the preconfiguration.

Embodiments include a control apparatus, a control method, and a control system that can effectively utilize an index regarding light incident on a measured object by obtaining the index effective for the measured object. The control apparatus can effectively utilize an effective index by controlling improvement of an environment that affects calculation of the effective index on the basis of the effective index representing an index that is related to light incident on a measured object and that is effectively utilized for the measured object. The measured object may be a plant.

An algae scrubber system operates via a flow of water and a power source. The algae scrubber system does not require a bubbler. The rate of flow of the water may be variable. The algae scrubber system includes a screen that is configured to be removed from the system without shutting off the flow of water through the system and without spilling the water. The system includes a main body with a water distributor providing water to a tray. A screen hangs from the tray to and grow light(s) encourage algae growth on the screen.

The disclosure relates to technology for housing a hydroponic system. A hydroponic system is supported by a frame and includes a water re-circulation system that provides water and other nutrients to a set of plants housed within the frame and supported by the hydroponic system. A light source is also included to illuminate the set of plants. An external plant extension is connected to the frame and extends outside of the frame, thereby providing support for an external plant placed outside of the frame and enabling illumination of the external plant by the light source of the hydroponic system. In some embodiments, the external plant may also receive water from the hydroponic system through a wick or pump coupled to the frame (directly or indirectly) in a manner the draws water from the hydroponic system and delivers the water to the external plant.

An example horticultural lighting fixture disclosed herein includes a first number of light emitting diodes (LEDs) emitting photons in each of a blue spectral band, a green spectral band, and a red spectral band. A second number of LEDs emit photons in the red spectral band. The first number of LEDs and the second number of LEDs collectively emit a number of photons with wavelengths between 400-700 nm, where between 75-85% of the number of photons are emitted in the red spectral band.

A hydroponic cultivation apparatus, a system and a method for facilitating hydroponic cultivation is disclosed. The hydroponic cultivation apparatus includes a reservoir, a plinth, a grow tray with a grow tray lid, and a docking with coupler. The reservoir, placed upon the plinth, is located at a higher position adjacent to the grow tray for optimizing liquid circulation from the reservoir to the grow tray and vice-versa using one or more pipes, a solenoid valve and a pump. The base further includes a dock coupled to the grow tray for providing an electrical connectivity to the grow tray and simultaneously allowing the liquid to flow through the grow tray without being leaked. Further, the apparatus is having a roof which is provided with sources of illumination for providing light required for plant growth.

A lighting system includes a light source, a light redirection element, and a movement mechanism coupled to the light source and the light redirection element. The movement mechanism is configured to simultaneously or stepwise move the light source and the light redirection element between a top lighting position and an interlighting position.

A plant cultivation device may include a cabinet forming a space in which plants are cultivated: a door connected to the cabinet to open and close the space; at least one bed disposed in the space; at least one light assembly that irradiates light onto the at least one bed; a tank configured to store a fluid; a fluid supply module configured to supply the fluid to the at least one bed; and a sterilizer positioned outside of the tank and configured to sterilize the fluid within the tank.

Photosynthetically active photon flux density (PPFD) provided to plants from a grow light may be calculated based on light-canopy distance measurements, intensity measurements around the plants, and a known shape or distribution of light at the measured distance from the grow light. A controller and a method of controlling one or more grow lights can employ closed-loop techniques that repeatedly measure and adjust light until a desired PPFD is achieved and then maintained.

A lighting device is provided. The lighting device includes a body on which a substrate on which a plurality of light sources are disposed, is mounted on a front surface of the body and configured to extend in a length direction, a film cartridge including a film divided into a plurality of radiation areas having different light conversion characteristics, and a pair of roll bars configured to wind both ends of the film, a driving unit coupled to one side surface of the body and configured to apply driving force to one end of each of the roll bars to change the radiation areas of the film, and a side cover coupled to a remaining side surface of the body to support a remaining end of each of the roll bars.