High-voltage LEDs offer optimum solution for indoor retrofit lamps (MAGAZINE)
High-voltage (HV) LEDs have a turn-on voltage that is closer to the mains supply than conventional high-current LEDs. This eliminates components, notably the driver, and offers other advantages, as Epistar’s ALEXANDER WANG explains.
A major advantage of HV-LEDs over conventional LEDs is the forward current, which is typically an order of magnitude smaller in the HV-LED. Low current is favored in LED chip designs due to the better current-spreading effect.
This article was published in the April/May 2011 issue of LEDs Magazine. To read the full version of this article, please visit our magazine page, where you can download FREE electronic PDF versions of all issues of LEDs Magazine. you can also request a print copy of LEDs Magazine (available by paid subscription) and sign up for our free weekly email newsletter.