Visual Communications Company - VCC
Kingbright
Stanley Electric Co
Würth Elektronik
SunLED
QT Brightek (QTB)
LITEON
OSRAM Opto Semiconductors Inc.
Everlight Electronics Co Ltd
Lumex Opto/Components Inc.
TT Electronics/Optek Technology
Inolux
Vishay Semiconductor Opto Division
Dialight
00852-53413153
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