I used the PD 3.0 with 9V/3A for supply. It can be powered from an USB-PD power supply or with an PD-Power bank for soldering on the go.
The heat up time from 25°C to 350°C is around 6s. Auto-standby temperature is around 180°C, by picking up from the rest around 3s are needed to reheat.
The user-interface consist tree LED's and two buttons. The LED's indicate which temperature profile is active (Low, Mid or High) as well as the operating modes (user-standby, auto-standby, auto-off, warm-up and overheat).
One button controls the user-standby mode the other changes the temperature profiles.
The pen fits perfectly to the Weller safety rest WDH 51.
Here is the video demonstration: