Negative 100W~180W PWM CO2 Laser Power Supply

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(1 review)
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This is a negative voltage power supply ideal for 100~180W Co2 Laser tube requiring negative voltage. It is design primarly as replacement power supplies for our 200W GSI laser power supply. 

It comes with built-in PWM control and analog power control. The negative circuitry design is applicable for lasertubes that need a reverse connection voltage.  


Key Features

  • TTL control
  • Stable output

Disclaimer: High-voltage quick connect is not included for this power supply. Please give us a call for more information. The high voltage cable is about 5ft long.


  • Input: AC110V(default) 50/60Hz ; AC 220V when requested. 
  • Power: 100W~180Watt
  • Triggering Voltage: 31KV
  • Operating Voltage: 22kV~25kV
  • Current:  35mA Max.
  • Dimension: 12.4" x 7.7" x 4.02" (315mm x 195mm x 102mm)
  • Weight: 9.7 lbs
  • 3pin terminal pinout: G, AC, AC
  • 6pin terminal pinout: High, Low, WaterP, Gnd, IN, 5V

Please see forum for more info about pinout and red test button.


12 months limited warranty


  • 5
    Excellent upgrade to my W6 tube

    Posted by Stephen Schlie on Feb 21st 2022

    Bought a new Chinese laser and after getting things dialed in I was having issues with the laser running at lower power levels, think around 20% or ~5ma. The power would fade in and out over an engraving session. After replacing the power supply with this, it works perfectly. The swap was super easy as well, and as a plus I was able to switch over to 220v finally!