LED technology based torch device for use in e.g. audio-visual environment, utilizes phantom continuous voltages present in audio-visual medium on control networks and microphonic inputs of audio equipment for providing lighting

摘要

The device utilizes phantom continuous voltages present in an audio-visual medium on control networks i.e. intercom networks, and microphonic inputs of an audio equipment e.g. electrostatic microphone and preamplifier, for providing lighting, where the device works based on an LED technology.