Abstract
Standby power, so called an electric vampire, is a power which is consumed by appliances and office equipments connected to power sources while the devices are not performing. Sensor luminaires consist of PIR(Pyroelectric Infrared Ray) sensor, illuminance sensor(CdS), and light source. The sensor luminaires are one of the devices that consume a huge amount of standby power; it stands by for an average sum of 23 hours a day and performs only when moving subjects are detected under it, which barely takes up an hour per day. The purpose of this study is to provide basic materials to the selection of standby power items and to enable to explore a way to decrease the standby power by measuring and analyzing the power consumption of sensor luminaires. According to the results, the average standby power of LED sensor luminaires is 1.1W which is significantly higher than other products, and decrease in the standby power consumption of SMPS is important through the measurement.
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