The LED module is sandwiched between the base and {TAIL ~ the elastic members}, and is thereby secured to {HEAD ~ the base} of the heat sink 
The LED module is sandwiched between the base and { TAIL ~ the elastic members } , and is thereby secured to { HEAD ~ the base } of the heat sink
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH