Typically, but not necessarily, they are integrated to monitor {TAIL ~ the thermal conditions} of a number of critical junctions of {HEAD ~ the solid state light sources} 
Typically , but not necessarily , they are integrated to monitor { TAIL ~ the thermal conditions } of a number of critical junctions of { HEAD ~ the solid state light sources }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD