Plug-in LEDs

May 24, 2007
What is said to be the world's first LED that runs directly from ac power comes from Seoul Semiconductor Co. Ltd. in Korea.

The company's Acriche LEDs provide warm-white light suitable for indoor lighting. A luminous efficiency of 42 lumens/W is 20% more efficient than conventional warm-white dc LEDs. Actual system efficiency — corrected for luminous efficacy, ballast efficiency, and luminaire efficiency — is 39.9 lumens/W. By comparison, actual system efficiency for incandescent lamps is 7.5 lumens/W, and 30.6 lumens/W for compact fluorescents.

The so-called color-rendering index (CRI) is a measure of a light source's ability to produce vibrant colors on objects receiving the light. A CRI rating of 100 is equivalent to daylight, while a CRI near zero suggests colors appear unnatural under that particular light source. Acriche warm-white LEDs have a CRI of 90. The LEDs last 35,000 hr compared to 1,000, 3,500, and 8,000 hr for incandescent, halogen, and fluorescent lamps, respectively.

MAKE CONTACT
Seoul Semiconductor Co. Ltd.,
www.acriche.com

Sponsored Recommendations

MOVI-C Unleashed: Your One-Stop Shop for Automation Tasks

April 17, 2024
Discover the versatility of SEW-EURODRIVE's MOVI-C modular automation system, designed to streamline motion control challenges across diverse applications.

Navigating the World of Gearmotors and Electronic Drives

April 17, 2024
Selecting a gearmotor doesn’t have to be a traumatic experience. The key to success lies in asking a logical sequence of thoughtful questions.

The Power of Automation Made Easy

April 17, 2024
Automation Made Easy is more than a slogan; it signifies a shift towards smarter, more efficient operations where technology takes on the heavy lifting.

Lubricants: Unlocking Peak Performance in your Gearmotor

April 17, 2024
Understanding the role of lubricants, how to select them, and the importance of maintenance can significantly impact your gearmotor's performance and lifespan.

Voice your opinion!

To join the conversation, and become an exclusive member of Machine Design, create an account today!