There is provided {HEAD ~ a lighting fixture} capable of efficiently radiating heat of {TAIL ~ a lamp device} attached to a socket device 
There is provided { HEAD ~ a lighting fixture } capable of efficiently radiating heat of { TAIL ~ a lamp device } attached to a socket device
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH