Flashforge Dreamer setting Voltage

I've just got a new Dreamer. The manual / instructions / stickers all say you MUST check the Voltage before powering up. However, mine does not even have a visible PSU in the bottom! Its a solid base. When I took the base off the PSU has no switch on the side (and looks totally different to images). I suspect it now auto sets to the correct voltage but don't want to blow the dam thing up! I've been waiting all day for tech support at Flashforge or TechnologyOutlet (who I bought it from) to get back to me. Anyone else had a similar issue?