Patent ID: 9131550
Filing Date: 2015-09-08
Classification: H05B

Abstract:
1. A lighting system comprising: at least one lighting device, each including at least one light source; an internal clock; circuitry including a memory for establishing light quality data of said lighting device and for each of the at least one light source; the light quality data further including a lighting device identifier and a light source identifier; a controller to control modulated light output of said at least one light source and embedding the light quality data in the modulated light output; at least one monitoring device for determining a status of the at least one lighting device, the monitoring device being external to said at least one lighting device and comprising the transmitter operable to transmit a second set of instructions to the at least one lighting device to provide visible indication of an end of life condition; wherein the controller in the lighting device is responsive to the second set of instructions transmitted by the monitoring device and modifies the light output to visibly blink or switch off in order to be visibly identified.