{HEAD ~ The secondary filament} 18 and the tertiary filament 20 are preferably lower wattage, up to a maximum of {TAIL ~ 15 watts}, in order to keep the filaments 18 and 20 from overheating and damaging the colored sleeves 22 
{ HEAD ~ The secondary filament } 18 and the tertiary filament 20 are preferably lower wattage , up to a maximum of { TAIL ~ 15 watts } , in order to keep the filaments 18 and 20 from overheating and damaging the colored sleeves 22
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH