19 March 2018
Seoul Semiconductor demonstrates 150lm/W AC module using Acrich AC LED technology
© Semiconductor Today Magazine / Juno PublishiPicture: Disco’s DAL7440 KABRA laser saw.
South Korean LED maker Seoul Semiconductor Co Ltd has demonstrated an AC LED module with a luminous efficiacy of 150lm/W, developed using the NanoDriver Series LED driver configured for optimum efficiency and employing Acrich MJT 5630 LEDs characterized at a correlated color temperature (CCT) of 5000K and a color rendering index (CRI) of 80, at 25°C ambient temperature and operated at 6V.
Prior to its recent product introduction, Seoul Semiconductor says that many LED fixture designers perceived AC LED technology as a low-performance, low-cost solution, assuming that AC LED technology had compromised performance that restricted its applicability. The firm says the demonstration shows that it is possible to get a high-efficacy, low-flicker solution using AC LED technology.
“The NanoDriver Series LED drivers will have a significant impact on LED fixture design by bringing a miniature, low-cost, high-performance module solution to the lighting industry,” says executive VP Keith Hopwood.
“The NanoDriver Series devices enable fixture designers to significantly reduce the size, weight and volume of their luminaire designs,” explained Hopwood. “The NanoDriver’s efficacy, low flicker and miniature size is the result of Seoul Semiconductor’s continued research and development into AC LED technology, delivering a less bulky and highly efficient design,” he adds.
The NanoDriver Series is suitable for applications such as flush-mount, wall sconce, vanity and down-light applications. Their small size enables ultra-thin and novel fixture designs, making conventional lamp replacement possible without the need for a large volume recess for the driver, or a reduction in the light output, says the firm. Previously, it has been difficult to convert many conventional fixture designs to LEDs because there was no space for the LED driver.
The NanoDriver Series devices are suitable for luminaire designs up to 3000lm, making possible the integration of the control circuitry with the external converter. This allows the mounting of more light sources on board or reducing the total size of the fixture and mounting plate. The NanoDriver Series devices are small and lightweight enough to make airfreight economical, reducing lead time and streamlining the supply chain, the firm adds.