SureFire Selects Seoul Semiconductor's LED Technology to Power High-Performance Flashlights

Company's Technology Meets Flashlight Maker's Rigorous Standards for Quality, Reliability and Performance

SEOUL, KOREA -- September 26, 2007 -- Seoul Semiconductor (KOSDAQ: 046890), one of the eight largest LED manufacturers in the world, announced today that SureFire has selected Seoul Semiconductor's Z-Power LED P4 series to power its SureFire 2.5 W flashlights. SureFire is a California-based manufacturer of high-end illumination tools that are powerful, compact, rugged and reliable. Military, police and emergency personnel, and outdoors professionals rely on SureFire's flashlights to provide enough light when they need it.

SureFire 2.5 W is a compact, high-output lightweight tool designed for rugged conditions including camping and military use. Features include a precision reflector, momentary-on, constant-on, and a switch lockout to prevent accidental activation. SureFire began incorporating Seoul Semiconductor's LED technology into its SureFire 2.5 W this month.

"We are pleased to see that our technology has met the exacting standards demanded by SureFire," said Yang-hee Han, vice president and general managing director for sales and marketing, Seoul Semiconductor. "This is a testimonial that our technology is capable of passing even the world's highest performance measurements."

"We selected Seoul's Z-power LED P4 series because it offers one of the industry's highest-level of brightness and reliability, that also fits all lens designs," said Paul Kim, vice president of engineering at SureFire. "As such, it can be directly applied to all of our existing SureFire flashlights without the need to design and incorporate new lenses. Seoul's innovative technology will help us to continue to deliver superior technology that meets the needs of our customers."

Seoul Semiconductor's Z-power LED P4 series boasts the industry's highest brightness of 240 lumens at 1 Ampere. It also features the industry's highest luminous efficacy (100 lm/W @ 350 mA at the maximum) with only a single die, making it a brighter and more cost-effective light source when compared to conventional 70 lm/W fluorescent and 15 lm/W incandescent lighting options. In addition, Seoul Semiconductor also provides LEDs of various white colors segmented by color coordinate temperature 2,650 Kelvin to 10,000, which addresses the color deviation problem to render high uniformity of light.

"This relationship with SureFire reinforces our global position as a leading LED manufacturer," said Mr. Han. "Seoul Semiconductor's P4 series LEDs is rapidly replacing conventional lighting sources and opening the doors to a new era of energy efficient and environmental friendly lighting."

About SureFire

SureFire ( designs, manufactures and sells compact, high-performance flashlights and high-end tactical equipment, including weapon-mounted lights, sound suppressors, laser sights, edged weapons and EarPro hearing protection/enhancement.

About Seoul Semiconductor

Seoul Semiconductor is the largest LED lighting solutions manufacturer in Korea, and eighth-largest in the world according to Strategies Unlimited. Seoul Semiconductor has been named to Forbes' and BusinessWeek's lists as one of the most promising Asian companies. Its product, Acriche, was recently named as "Product of the Year 2006" by Elektronik, one of the most prestigious electronics magazines in Europe. Seoul semiconductor's primary business areas are LED packaging and custom module manufacturing. It provides a full range of LED products including AC-driven semiconductor light source, Acriche, High-brightness Power, Side View, Top, Chip, Lamp and High Flux LEDs, and custom type modules. Applications for the company's LED products include general lighting, signage, back lighting for mobile phones, TVs, notebook computers, automotive lighting, home appliances, signals, etc. Seoul Semiconductor reported US$200 million in sales in 2006. It has 1,251 patents and 100 licenses as of June 30, 2007. Seoul Semiconductor has 3 overseas corporate offices and 13 branches. Its products are also represented worldwide by more than 90 distributors.

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