Answers (1)
Go to google.com and search GE Microwave PVM1790R1SS manual
Notice I added spaces and removed extraneous information.
Wattage should be on a label inside the door or on the back. What is cube? Cubic feet? Microwaves are all 0.7cf (900 watts) or 0.9cf (1200 watts). I have not seen any other size.