Our fiber laser engravers have a source rating, however, that figure (30w,50w,60w,80w,etc.) relates to the energy output of the source and is the measurement of the laser beam's energy. The actual consumption of electrical power, from the wall, for our fiber laser engravers is as follows:
100w : 930w/4.23A
60w : 740w/3.36A
50w : 820w/3.73A
30w : 680w/3.09A
20w : 630w/2.86A
This is based on tests and results compiled by one of our suppliers so we have to account for variences in their machines as well as the other suppliers who have not provided figures yet. Do remember this may also change based on peripherals, like a PC or Rotary device.