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![Shouldn't this white wire from my power supply be connected to this black wire that goes to my ammeter then laser tube? This is how I received my 130W laser with a Shouldn't this white wire from my power supply be connected to this black wire that goes to my ammeter then laser tube? This is how I received my 130W laser with a](https://i.redd.it/t5ozi7pk9hm31.jpg)
Shouldn't this white wire from my power supply be connected to this black wire that goes to my ammeter then laser tube? This is how I received my 130W laser with a
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ATOMSTACK A20 Pro Laser Engraving Machine 130W, 20W Optical Power Laser Engraver Cutter with Twin-Cylinder F30 Pro Air Assist kit, Support Self-Developed Mobile Phone APP, Engraving Area 400x400mm : Amazon.co.uk: DIY &
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