Definition of the concept of modulation frequencies for LEDs; a discussion on their applications to LED lighting; a describe LED lighting applications in which modulation frequencies pose possible health risks to users are addressed in this recommended practice. A discussion on the concept of dimming of LEDs by modulating the frequency of driving currents/voltage and present recommendations for modulation frequencies (flicker) for LED lighting and dimming applications to help protect against known potential adverse health effects is also addressed.

Seoul Semiconductor has announced on 23rd of December that the company has been recognized for its intellectual clout in semiconductor manufacturing. According to the Institute of Electrical and Electronics Engineers (IEEE), among the companies which manufacture LED components only, Seoul Semiconductor was the only one to be selected in the 2013 Semiconductor Manufacturing Patent Power Ranking. Seoul Semiconductor was also selected in the same category in 2012.