Press release

Desk Lamps With Seoul Semiconductor’s SunLike Series Natural Spectrum LEDs Sold at Costco, to Support Children’s Learning and Protection From Myopia

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Seoul Semiconductor Co., Ltd. (KOSDAQ 046890), a leading global compound semiconductor, announced that desk lamps with its SunLike Series natural spectrum LEDs, which help improve learning and protect from myopia, have started sales at Costco located in Taiwan, Japan, and Korea. SunLike Series LEDs are optimized to support healthy circadian rhythms and eye comfort based on natural sunlight. It has been also launched in Vietnam.

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Desk lamps with SunLike Series natural spectrum LEDs by adopted Prism (left) and Rang Dong (right) (Photo: Business Wire)

Desk lamps with SunLike Series natural spectrum LEDs by adopted Prism (left) and Rang Dong (right) (Photo: Business Wire)

Seoul Semiconductor’s SunLike Series natural spectrum LEDs are the world’s first LEDs to produce light that closely matches the spectrum of natural sunlight, which have been recognized as an innovative technology by a total of ten global lighting awards held in Korea, Europe, China, and the US. SunLike Series LED is an optimal light source to support learning, protect from myopia, and improve sleep, enabling a healthy circadian rhythm. It has also achieved the highest level of eye safety certification from the International Commission on Illumination as a safe light source with no photo-biological risk.

The SunLike Series natural spectrum LED solution has been proven to have beneficial effects on improving sleep and eye comfort based on the study results conducted by research teams at Basel University in Europe and Seoul National University in Korea. The study conducted by Professor Christian Cajochen and his colleagues at the University of Basel in Switzerland, published in the Journal of Lighting & Research Technology on March 24, 2019, found “evidence that daylight [natural spectrum] LED solution has beneficial effects on visual comfort, daytime alertness, mood, and sleep intensity in healthy volunteers.” According to the results of a study done by the Bio-Information Laboratory of Seoul National University Hospital in July of 2018, SunLike Series natural spectrum LEDs have been shown to reduce eye discomfort and improve sleep patterns.

“A research team at the Australian National University introduced that the incidence of myopia in children in four Asian countries has more than quadrupled over the past 50 years. This result shows that it cannot be concluded that the cause of myopia is due to heredity and that the use of healthy light with a spectrum similar to that of natural light is very important,” said a representative at Seoul Semiconductor.

“In order to improve children’s health and learning as their indoor life increases, the use of lighting with SunLike Series natural spectrum LEDs, which have three beneficial effects in contrast to conventional LEDs: Better Sleep – improvement in sleep quality; Better Study – support for students’ learning and concentration; and Better Eye Health – protection from myopia in children, is essential. So we will continue to make efforts to provide differentiated SunLike solutions to improve human health and customer value,” added him.

The desk lamps (LSP-5700WH) with SunLike Series LEDs sold at Costco have been manufactured by Korean brand ‘Prism’ and the SunLike recently has been adopted by Rang Dong Lighting Co., Ltd., Vietnam’s largest lighting brand. In recognition of the excellence of technology that helps learning and eye comfort, the customer demand will continue to expand in Vietnam.

About Seoul Semiconductor

Seoul Semiconductor develops and commercializes LEDs for automotive, general illumination, specialty lighting, and backlighting markets. As the second-largest LED manufacturer globally excluding the captive market, Seoul Semiconductor holds more than 10,000 patents, offers a wide range of technologies, and mass produces innovative LED products such as SunLike – delivering the world’s best light quality in a next-generation LED enabling human-centric lighting optimized for circadian rhythms; WICOP – a simpler structured package-free LED which provides market leading color uniformity and cost savings at the fixture level, providing high lumen density and design flexibility; NanoDriver Series – the world’s smallest 24W DC LED drivers; Acrich, the world’s first high-voltage AC-driven LED technology developed in 2005, including all AC LED-related technologies from chip to module and circuit fabrication, and nPola, a new LED product based on GaN-substrate technology that achieves more than ten times the output of conventional LEDs. UCD constitutes a high color gamut display which delivers more than 90% NTSC. For more information, please visit