@ispot
"I’m about to order the HDZ for my XXL. I’m looking for a complete water-cooled package as the one mentioned here, but I need it 110Volts, instead of 220Volts. Or, should I be getting 220Volts? and if so, whay? I sincerely appreciate your help, thank you."
You’ll probably need 220V if you want a 2200 Watt spindle like the one shown here. But you should be OK with a 800 Watt spindle like this one.