An agricultural work vehicle for operating in a field includes a chassis, a cab mounted to the chassis, a controller for controlling operation of the work vehicle, and a lighting system including a array field light. The array field light projects a light emission to illuminate a defined zone. A light control module is disposed in electrical communication with the controller and operably controls the at least one array field light. A sensing device senses an area surrounding the work vehicle. The sensing device transmits a signal indicative of a detected object to the controller, which in turn determines if the detected object is in the defined zone. If the detected object is in the defined zone, the light control module controllably adjusts an output from the array field light so that only a portion of the defined zone in which the object is not located is illuminated.

The present disclosure provides systems, methods and apparatuses for inducing a desired biological response in an organism through the use of one or more repetitive signals from one or a series of LED lights designed to emit the signal with multiple pulsed components. Each component of the signal contains a one or more light color spectrum or wavelength that is within 50 nm of the peak absorption of a photon receptor of the organism corresponding to the desired biological response. Each component has a repetitive ON duration with an OFF duration and an intensity where the relationship between the ON duration and OFF duration of the first component and the second component induces the desired response in the organism through the stimulation or excitation of a molecule associated with a photoreceptor and the reset of the molecule.

The present disclosure provides systems, methods and apparatuses for inducing a desired biological response in an organism through the use of one or more repetitive signals from one or a series of LED lights designed to emit the signal with multiple pulsed components. Each component of the signal contains a one or more light color spectrum or wavelength that is within 50 nm of the peak absorption of a photon receptor of the organism corresponding to the desired biological response. Each component has a repetitive ON duration with an OFF duration and an intensity where the relationship between the ON duration and OFF duration of the first component and the second component induces the desired response in the organism through the stimulation or excitation of a molecule associated with a photoreceptor and the reset of the molecule.

The present invention relates to a lighting apparatus driver, comprising: a filter, which is used to filter out noise; a rectifier, which is used to convert an alternating current voltage into a direct current voltage; and a plurality of voltage regulator integrated circuit (IC) modules, which are directly or indirectly connected to the rectifier, wherein each one of the plurality of voltage regulator IC modules is used to connect to a separate lighting apparatus, so that each one of the plurality of voltage regulator IC modules can independently control the electric current inputted into the lighting apparatus connected thereto.

The present invention relates to a lighting apparatus driver, comprising: a filter, which is used to filter out noise; a rectifier, which is used to convert an alternating current voltage into a direct current voltage; and a plurality of voltage regulator integrated circuit (IC) modules, which are directly or indirectly connected to the rectifier, wherein each one of the plurality of voltage regulator IC modules is used to connect to a separate lighting apparatus, so that each one of the plurality of voltage regulator IC modules can independently control the electric current inputted into the lighting apparatus connected thereto.

An AC two-wire LED high voltage lamp string with synchronous dimming and color adjustment comprises a high voltage controller and a lamp string group, wherein the high voltage controller comprises a control box, and a first power supply module, a switch control circuit and a first microcontrol unit which are arranged in the control box and connected in sequence; the first power supply module is connected with the switch control circuit and the first microcontrol unit; a second microcontrol unit. The present invention modulates and encodes a high voltage sine wave using the switch control circuit at the controller end and demodulates the sine wave at a bulb end to realize the functions of color change timing, flashing, timing and light control of lamp strings. The lamp strings can be used individually or connected in series and in parallel for use, to satisfy different needs of consumers.

An AC two-wire LED high voltage lamp string with synchronous dimming and color adjustment comprises a high voltage controller and a lamp string group, wherein the high voltage controller comprises a control box, and a first power supply module, a switch control circuit and a first microcontrol unit which are arranged in the control box and connected in sequence; the first power supply module is connected with the switch control circuit and the first microcontrol unit; a second microcontrol unit. The present invention modulates and encodes a high voltage sine wave using the switch control circuit at the controller end and demodulates the sine wave at a bulb end to realize the functions of color change timing, flashing, timing and light control of lamp strings. The lamp strings can be used individually or connected in series and in parallel for use, to satisfy different needs of consumers.

A light-emitting diode (LED) driver configured to generate an LED driving current based on an input signal may include a terminal exposed to outside, a controller configured to identify a first identifier and data from the input signal, identify a second identifier based on a signal applied to the terminal, and when the first identifier and the second identifier are identical to each other, generate a control signal based on the data. The LED driver further may further include a current source configured to generate the LED driving current based on the control signal.

A light-emitting diode (LED) driver configured to generate an LED driving current based on an input signal may include a terminal exposed to outside, a controller configured to identify a first identifier and data from the input signal, identify a second identifier based on a signal applied to the terminal, and when the first identifier and the second identifier are identical to each other, generate a control signal based on the data. The LED driver further may further include a current source configured to generate the LED driving current based on the control signal.

Embodiments of the present disclosure generally relate to systems and methods for calibrating light-emitting diode (LED) light engines. The systems and methods described herein include characterizing the performance of a red-green-blue (RGB) LED light engine so as to enable the display of calibrated, dimensionless output values that accurately reflect a perceived brightness of illumination generated by the light engine for a specific output color.