A Silent Witness 12 volts DC to 7.2 volts DC adaptor 550.0021 for Sony camcorder. This Silent Witness 12 Vdc to 7.2 Vdc adaptor is install on Sony modified camcorder install in Silent Witness V30 video box inside school buses. This 12 Volts dc to 7.2 volts dc adaptor can also be use for many others mobile applications  where a 7.2 volts dc is require from a 12 volts dc source.The Silent Witness 550.0021 dc to Dc adaptor is sold as you see on the photos.

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