光源自控开关是应用声学、光学或无线电电子学原理，在一定范围内可探测到人体活动并进一步自动控制电光源上所加电压的接通与断开，做到“人来灯亮，人走灯灭”的装置。由于它在众多场合能有效节省照明耗电，随着绿色照明计划的推广与实施，这种节能产品已被广泛应用。从... Light source control switch is the application of acoustics, optics or radio electronics principle, within a certain range of human activities can be detected and further automatic control of the light source on the voltage applied to turn on and off, so that “people to light, people walk lights Off ”device. Because it can effectively save lighting power consumption in many occasions, with the promotion and implementation of green lighting program, this energy-saving products have been widely used. From...