One embodiment of the present invention includes {HEAD ~ a lamp} mounted to and outside of {TAIL ~ the housing}, preferably, on top of the housing 
One embodiment of the present invention includes { HEAD ~ a lamp } mounted to and outside of { TAIL ~ the housing } , preferably , on top of the housing
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH