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By comparing circuit testing, when the sound signal reaches preset monitoring strength, comparison circuit output pulse signal to the gate, is a gate open, send electrical signals to the power amplifier circuit, the power amplifier circuit saturation conduction, switching control equipment, at the same time have a clock circuit to maintain on state
can make other decoration. Suitable for promotional gifts, hotels, bars, home decoration, churches, Halloween, Christmas gifts, etc.
Gold electronic candles
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