External Power Box -- Rotary Heat Press

[angelbaby]

I find there is external power box appear in a rotary heat press i am interested, it need extra $800 cost to do it.
Is it deserve to add this item?

(Link removed by admin)

They claim the advantage:
a) Protect main electric parts from high temp of the machine body during operating, so longer life cycle;
b) With individual voltage and current indicator;
c) Adjustable power based on jobs to save energy