{HEAD ~ A lighting device} includes a first lighting source, {TAIL ~ a second lighting source}, and a controller 
includes
{ HEAD ~ A lighting device } includes a first lighting source , { TAIL ~ a second lighting source } , and a controller
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH