Kaga Components Co. Ltd. exhibited a power supply apparatus for LED lighting that has a lifetime of more than 100,000 hours at an exhibition taking place from April 15 to 17, 2009, in Tokyo.
The apparatus is currently under development and was exhibited at a trade show for the first time, the company said. The electrolytic capacitor was removed from the circuit to achieve the lifetime of more than 100,000 hours. At the same time, the power supply circuit was downsized.
LED lights are expected to spread rapidly in the near future because people are increasingly concerned about environmental issues. However, while the lifetime of LEDs, the main components of an LED light, is 30,000 to 40,000 hours, the lifetime of existing power supply apparatuses is as short as 10,000 hours, a spokesperson of Kaga Components said. The short lifetime is attributable to the electrolytic capacitor, which has a lifetime of only 10,000 hours.
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