OK guys, thanks for the input.
I currently run the Longmill, router (6.5 amps), shop vac (11,5 amps) laptop computer (1 amp) and external monitor (1.5 amps) all together on a single 15 amp circuit without blowing it. My ciphering skills tell me that’s a total of 20.5 amps without including the Longmill controller. Go figure.
Anyway, since I will not be running the router and shop vac when I’m running the LaserBeam I don’t think the load from LaserBeam and fan (0.3 amps) will approach the load that the router and shop vac have.
However, I still would like to know: What is the power draw (amps) on the new LaserBeam module and on the Longmill controller?