Würth Elektronik
Kingbright
SunLED
QT Brightek (QTB)
Broadcom Limited
Dialight
Everlight Electronics Co Ltd
Stanley Electric Co
Bivar Inc.
Marktech Optoelectronics
Lumex Opto/Components Inc.
Citizen
Rohm Semiconductor
LITEON
OSRAM Opto Semiconductors Inc.
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