Sensors 112 are employed to monitor {TAIL ~ one or more thermal conditions} of {HEAD ~ one or more regions} or locations of one or more of light sources 102 
Sensors 112 are employed to monitor { TAIL ~ one or more thermal conditions } of { HEAD ~ one or more regions } or locations of one or more of light sources 102
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH