Shelley was a key member of a close circle of visionary poets and writers that included Lord Byron; Leigh Hunt; Thomas Love Peacock; and his own second wife, Mary Shelley, the author of Frankenstein.
If the 900 watts means the input power, then 1000 w inverter would be ok. If the microwave produces 900 w of cooking power, you will need a bit more, maybe 1200-1400 w if you don't know what the input power rating of the microwave is.
You can install an inverter in your own RV very easily but there is a slight modification that needs to be made first. Read the full article: http://www.thediyworld.com/articles/1...To set up your RV to run solar power and use an inverter to power you AC appliances you will first have to remove the original RV power converter box. This box converts AC shore power into 12 volts DC which powers your RV lights and accessories.ead the full article: http://www.thediyworld.com/articles/1... To set up your RV to run solar power and use an inverter to power you AC appliances you will first have to remove the original RV power converter box. This box converts AC shore power into 12 volts DC which powers your RV lights and accessories.