In operation {HEAD ~ the lamp} has {TAIL ~ a voltage} of 109V, whilst the value for the coldest spot temperature Tkp 1299 k is and for Δλ 12.5 nm 
has
In operation { HEAD ~ the lamp } has { TAIL ~ a voltage } of 109V , whilst the value for the coldest spot temperature Tkp 1299 k is and for Δλ 12.5 nm
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH