Abstract: An ultraviolet sterilization and plant growth system can be mounted to an air duct to sterilize the air and then selectively removed and used in a portable mode to sterilize surfaces or enhance plant growth. The system includes a housing, a heatsink element, an array of ultraviolet light-emitting diodes (LEDs) to generate directional beams of ultraviolet radiation, and an electronic driver to control the LEDs. One or more power interfaces allow for operation in AC mode when connected to a power receptacle or in DC mode when powered by a portable source. In addition to its sterilization capabilities, the system incorporates tunable LEDs and programmable light recipes designed to support plant health and growth. These include specific light frequencies for vegetative growth, flowering, and pest control, making the system a versatile solution for both sterilization and horticultural applications.

Abstract: An adjustable LED lighting system includes a plurality of LEDs, at least one driver, and a programmable signal generator to control a drive frequency. The signal generator includes a clock, an input module to receive commands for driving the LEDs, and a frequency adjustment module to drive the frequency of the one or more LEDs. The LEDS are driven at a target or specified frequency for a time period that is specified with a start time and/or an end time. The LED lighting system allows for a variable frequency of outputs during different time periods and/or in response to specific use commands. The LED lighting system includes one or more target frequencies for one or more target time periods. The LED lighting system stores the target frequencies and target time periods and make the frequency modifications at the user-specified times.

Abstract: An LED lighting system includes a plurality of light-emitting diodes (LEDs), at least one driver to drive the plurality of LEDs, and at least one heat sink to dissipate thermal energy produced by the LEDs. The heat sink communicates a thermal resistance value or other heat dissipation characteristic information to the LED lighting system. A power adjustment module of the LED lighting system modifies a current flow to the plurality of LEDs based on the characteristics of the heat sink.

Abstract: An adjustable LED lighting system may allow for a variable lumen output, an estimation of remaining life expectancy, and/or control of lighting intensity, color temperature, and/or wavelength distribution. An LED lighting system may be capable of mimicking externally monitored, remote controlled, pre-defined, user-selected, or other lighting conditions. An LED lighting system may allow for a variable lumen output by monitoring a temperature associated with one or more LEDs and increasing or decreasing current flow to maintain the monitored temperature below a maximum temperature. The remaining life may be estimated based on historical runtime and temperature data.

Abstract: An adjustable LED lighting system may allow for a variable lumen output, an estimation of remaining life expectancy, and/or control of lighting intensity, color temperature, and/or wavelength distribution. An LED lighting system may be capable of mimicking externally monitored, remote controlled, pre-defined, user-selected, or other lighting conditions. An LED lighting system may allow for a variable lumen output by monitoring a temperature associated with one or more LEDs and increasing or decreasing current flow to maintain the monitored temperature below a maximum temperature. The remaining life may be estimated based on historical runtime and temperature data.

Abstract: An adjustable LED lighting system may allow for a variable lumen output, an estimation of remaining life expectancy, and/or control of lighting intensity, color temperature, and/or wavelength distribution. An LED lighting system may be capable of mimicking externally monitored, remote controlled, pre-defined, user-selected, or other lighting conditions. An LED lighting system may allow for a variable lumen output by monitoring a temperature associated with one or more LEDs and increasing or decreasing current flow to maintain the monitored temperature below a maximum temperature. The remaining life may be estimated based on historical runtime and temperature data.

Abstract: An adjustable LED lighting system may allow for a variable lumen output, an estimation of remaining life expectancy, and/or control of lighting intensity, color temperature, and/or wavelength distribution. An LED lighting system may be capable of mimicking externally monitored, remote controlled, pre-defined, user-selected, or other lighting conditions. An LED lighting system may allow for a variable lumen output by monitoring a temperature associated with one or more LEDs and increasing or decreasing current flow to maintain the monitored temperature below a maximum temperature. The remaining life may be estimated based on historical runtime and temperature data.