GVM page states: 120W peak power, rapid heating, 2 seconds tin melting, no difficulty in soldering joints of different sizes.
Sunshine page states: 110W peak power
The sunshine AC adapter is tiny, so I guess its not anywhere near 110W.
The "official" spec from JBC T210 I can find says 20W, but the station is claimed 40W, so probably around 40-50W is what it really should be using peak.
If you have a meter to measure power from the wall you can get an idea of how much these stations are overdriving the tip. 120W could cause it to burn out quickly.