There is no fixed connection between frequency (Hertz) and voltage, you can have 60 Hz at any voltage.
If you mean the USA, there they use 120 volts / 60 Hz.
It could be anything from zero to infinity because Hertz are not proportional to either watts or volts. But 120 v supplies are common in America, where the frequency happens to be 60 Hz.
If your device uses 900 Watts at 7.5 Amps, then it requires 120 volts. If you want to use it where the supplied current is 220 volts, then you'll need a transformer - but only if the device can operate on 50 Hz. Most places that use 220 Volts supply it at 50 Hz. If your device says it can operate on 50 Hz you can use a transformer.
The answer to the Related Question shown below is relevant to this question.
1200
Worcester, Ma uses 120 volts at 60 Hz for lighting and outlets and 240 volts for some appliances and HVAC. Worcester, England uses 230 volts at 50 Hz.
No it would not.
If you mean the USA, there they use 120 volts / 60 Hz.
220 volts 60 Hz
120 volts 60 hz
There are 1350 watts in a 60 hz bulb. There is a push not for everyone to transfer to led bulbs.
120 volts 60 Hz AC
120 volts 60 Hz AC
It could be anything from zero to infinity because Hertz are not proportional to either watts or volts. But 120 v supplies are common in America, where the frequency happens to be 60 Hz.
Not without a step up transformer. The U.S is 120 volts at 60 Hz and France is 240 volts at 50 Hz.
115 volts 60 Hz AC
NO