High-CRI ac LEDs beat dc LED efficacy, price

摘要

Working from 110 to 220-Vac power sources, thernAcriche 4 ac LED has an efficacy (luminous ef-rnficiency) of 75 lm/W, surpassing competing dcrnLEDs. Further, the devices willrncost 10% to 20% less than dcrndevices. With a color-rendering index (CRI) greaterrnthan 85, tne <1-W device can replace warmwhite incandescent and compactrnfluorescent light sources in many consumer and com-rnmercial applications. The 3,000K A4 devices rely on multiple proprietary technologies to increase efficiency.