作者: Kathryn M. Conway , Yutao Zhou
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摘要: A lighting device (10) has a support that can be screwed into standard (120) volt light socket. ring with multiple, alternating color circumferentially spaced LEDs (19, 21, 23) is connected to the and reflector (31) provided over for reflecting from past ring. power supply circuit powering emit light. The white if are combination of red, blue green or other white-forming combinations, selectively subsets produce desired color. same used vary intensity in manner dimmer (18, 20, 22).