A lighting device control system for controlling one or more lighting devices, the system comprising: a first lighting device comprising: a communication interface (304, 305, 306); an optical radiation source (203, 205, 310); and a fixture controller comprising a processor and memory device, wherein the memory device contains programming instructions configured to, when executed by the processor, cause the first lighting device to: receive, via the communication interface, a signal indicating that a portable electronic device is in a proximate communication range of the communication interface, receive, via the communication interface, a light operation request from the portable electronic device, wherein the light operation request comprises one or more settings for one or more optical characteristics of light that the optical radiation source may emit, determine whether the portable electronic device is authorized to cause the optical radiation source to implement the light operation request, and in response to determining that the portable electronic device is authorized to submit the light operation request, cause the optical radiation source to emit light that exhibits the settings for the one or more optical characteristics; the system further comprising a second lighting device that also has a communication interface, an optical radiation source and a fixture controller, and wherein: the light operation request also comprises one or more settings for one or more optical characteristics of light that the second lighting device may emit; and the programming instructions also comprise instructions to, in response to determining that the portable electronic device is authorized to submit the light operation request, transmit one or more settings from the light operation request to the second lighting device for the fixture controller of the second lighting device to use in operation of its optical radiation source; characterised in that the one or more settings for the second lighting device are different from the one or more settings for the first lighting device. a first lighting device comprising: a communication interface (304, 305, 306); an optical radiation source (203, 205, 310); and a fixture controller comprising a processor and memory device, wherein the memory device contains programming instructions configured to, when executed by the processor, cause the first lighting device to: receive, via the communication interface, a signal indicating that a portable electronic device is in a proximate communication range of the communication interface, receive, via the communication interface, a light operation request from the portable electronic device, wherein the light operation request comprises one or more settings for one or more optical characteristics of light that the optical radiation source may emit, determine whether the portable electronic device is authorized to cause the optical radiation source to implement the light operation request, and a communication interface (304, 305, 306); an optical radiation source (203, 205, 310); and a fixture controller comprising a processor and memory device, wherein the memory device contains programming instructions configured to, when executed by the processor, cause the first lighting device to: receive, via the communication interface, a signal indicating that a portable electronic device is in a proximate communication range of the communication interface, receive, via the communication interface, a light operation request from the portable electronic device, wherein the light operation request comprises one or more settings for one or more optical characteristics of light that the optical radiation source may emit, determine whether the portable electronic device is authorized to cause the optical radiation source to implement the light operation request, and in response to determining that the portable electronic device is authorized to submit the light operation request, cause the optical radiation source to emit light that exhibits the settings for the one or more optical characteristics; the system further comprising a second lighting device that also has a communication interface, an optical radiation source and a fixture controller, and wherein: the light operation request also comprises one or more settings for one or more optical characteristics of light that the second lighting device may emit; and the programming instructions also comprise instructions to, in response to determining that the portable electronic device is authorized to submit the light operation request, transmit one or more settings from the light operation request to the second lighting device for the fixture controller of the second lighting device to use in operation of its optical radiation source; characterised in that the one or more settings for the second lighting device are different from the one or more settings for the first lighting device. the light operation request also comprises one or more settings for one or more optical characteristics of light that the second lighting device may emit; and the programming instructions also comprise instructions to, in response to determining that the portable electronic device is authorized to submit the light operation request, transmit one or more settings from the light operation request to the second lighting device for the fixture controller of the second lighting device to use in operation of its optical radiation source; characterised in that the one or more settings for the second lighting device are different from the one or more settings for the first lighting device.