Seoul Semiconductor Co., Ltd is a Korea

Korea

Korea ) is an East Asian geographic region that is currently divided into two separate sovereign states — North Korea and South Korea. Located on the Korean Peninsula, Korea is bordered by the People's Republic of China to the northwest, Russia to the northeast, and is separated from Japan to the...

n company manufacturing LED

LEd

LEd is a TeX/LaTeX editing software working under Microsoft Windows. It is a freeware product....

 devices. The company is listed on KOSDAQ

KOSDAQ

KOSDAQ is a trading board of Korea Exchange in South Korea established in 1996. Initially set up by Korea Financial Investment Association as an independent stock market from the Korean Stock Exchange, it was benchmarked from the American counterpart, NASDAQ.KOSDAQ is an electronic stock market,...

.

In November 2006 Seoul Semiconductors announced it would be the first company to start selling in quantities LED light sources that can be plugged directly into 110 V or 230 V AC source. Previously using LED light sources has required the help of various converters.

Competitors of Seoul Semiconductor include Nichia

Nichia Corporation

The is a Japanese chemical engineering and manufacturing company, headquartered in Tokushima, Japan with global subsidiaries, that specializes in the manufacturing and distribution of phosphors, including light-emitting diodes , laser diodes, battery materials, and calcium chloride...

, Cree

Cree Inc.

Cree Inc. is a multinational manufacturer of semiconductor materials and devices, headquartered in Durham, North Carolina. Cree is noted for their improvements in light emitting diode technologies. Those improvements in lumens per watt suggest a time when LEDs will displace other lighting...

, Lumileds

Philips Lumileds Lighting Company

Philips Lumileds Lighting Company is the manufacturer of a wide range of high-power/high-efficiency light-emitting diodes . It is a now a fully owned division of Philips Lighting.-History:...

, Everlight

Everlight Electronics

Everlight Electronics Co. Ltd. is a Taiwanese company which manufactures light-emitting diodes . It is the world's seventh largest LED manufacturer. Its headquarters are in the city of Taipei.-History:...

 and Epistar

Epistar

Epistar Corp. is the largest manufacturer of light-emitting diodes in Taiwan. The company was established in 1996, and its headquarters are in the Northern Taiwanese city of Hsinchu, In 2009 it had an annual turnover of NT$10 billion....

.

The latest product of Seoul Semiconductor is SSC P7 which is a quad chip LED. It typically produces 700 lm

Lumen (unit)

The lumen is the SI derived unit of luminous flux, a measure of the total "amount" of visible light emitted by a source. Luminous flux differs from power in that luminous flux measurements reflect the varying sensitivity of the human eye to different wavelengths of light, while radiant flux...

 when current driven at 2800 mA (with V_F=3.6 V), making it popular choice for high-output flashlamps (with Cree Inc.

Cree Inc.

Cree Inc. is a multinational manufacturer of semiconductor materials and devices, headquartered in Durham, North Carolina. Cree is noted for their improvements in light emitting diode technologies. Those improvements in lumens per watt suggest a time when LEDs will displace other lighting...

MC-E being other popular choice).