Philips Smart LED Ball philips.light.bulb 9290012800 E27, 450lm, 3000K-5700K, 6.5W (12x0.37W / LED) Philips Zhirui Smart LED Bulb E14 Candle Lamp philips.light.candle 9290018615 scrub, E14, 200lm, ...
Abstract: Light-emitting diode (LED) lamps have been widely introduced in clinical settings. However, electromagnetic noise radiated from the switching power supply mounted in LED lamps may interfere ...
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