Since 13-May-2010 , We have adding aging 14V 5 min process ( Process No. ⑧ ) for take foreign matter stick filament
for detect filament broken which cause from foreign matter stick filament but aging by operate electricity rating 14V 5 min for
this part no. and all T3 size it take filament's row material is tungsten will be change it have crystalization it too easily for broken.
Refer lamp was take aging 14V 5 min filament's surface had been change which it easily to broken more than lamp
do not take aging 14V 5 min ,This reason we would like to stop aging 14V 5 min for all Part no. Size T3 .TRT