AC Watts Relativity Reference

Generator, Battery Backup, DC to AC Inverter - all things typically rated with a maximum capacity in watts.

WATTS            ITEM
-----            ------------------------------------
 4   -   20      Mobile phone or tablet charger
 9               Light Bulb (LED)
20   -   30      Dish Network Receiver
20   -   60      Small to Medium LCD TV up to 42"
20   -  200      Laptop PC (web browsing or book work at 20W to gaming and high end graphics near 200W avg 85W)
50   -   75      Sony Play Station or MS XBox
120  -  250      Large LCD TV up to 65" or maybe larger
175              Humidifier (13 Gal.)
200  -  450      Desktop PC and LCD Monitor
1000             Clothing Iron
1800 - 2500      Hair Dryer
1200 - 3600      Window AC (10,000 BTU)
1800 - 5000      Space Heater
3250 - 9750      Window AC (12,000 BTU)
4000             Electric Water Heater
6000             Central AC (40,000 BTU)

Watts: Power is the amount of work done in a specific amount of time. The unit used to express power is watts which is a function of both current and voltage.

Kilowatt Hours: watts divided by 1000. One kilowatt = 1000 watts.

Example, a window air conditioner that operates on 120 volts at 12 amps can be calculated as 120V * 12A = 1440 Watts.