The invention relates to {HEAD ~ a metal halide lamp} having a nominal power of more than 100 W, comprising {TAIL ~ a discharge vessel} with a ceramic wall 
comprising
The invention relates to { HEAD ~ a metal halide lamp } having a nominal power of more than 100 W , comprising { TAIL ~ a discharge vessel } with a ceramic wall
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH