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