Hi Guys,
I want to buy a 100 or 150 watt laser tube but I can't find out what the minimum power output is. The lady I am in touch with at Coletech doesn't seem to understand what I want.

eg.

The RATED power output is 150 watts
The ACTUAL power output at full power is probably 180 Watts when new.

If I apply 5 volts to the control side of the PWM power supply then I will get the actual full power of the laser.

If I apply <1 volt to the control side of the PWM power supply then what will I get and how low can it go and still have a stable beam output ?

Will I get 20 watts or will it be more like 60 watts.

I need to know this because I still want to engrave stuff and also cut thicker stuff at a faster rate. This will determine if I get a 100 watt laser or a 150 watt laser.

I can still use my 30 watt laser for glass and paper and card stock etc but then I can use the 100-150 watt laser to cut 10-20mm wood and ply or Acrylic at a greater rate.

Any thoughts on this anyone?

regards
Richard.