This speaker is 500watts max.
50 watts
744
I believe this one is 75w according to the product description.
1440
Watts = Amps x Volts. 60 x 240 = 14400
Speakers are measured in Ohms not Watts. Watts is the amount of power you will be supplying to the speakers. In my 2009 Corolla the speakers can handle at least 400 Watts as this is what my OEM JBL system is pushing.
The Kicker 08DS12L72 can pump out up to 1500 Watts, but you'll need a beefy receiver for that.
30X240=7200
A 30 amp circuit on a 250 volt service could handle up to 7500 watts. That's if it's actually 250 volts coming in. You should check that with your meter.
Kenwood GPS systems are considered by many to be among the most intuitive and well-made devices on the market. Of course, Kenwood makes many different types of GPS units, so it would be difficult to answer the question without knowing which specific Kenwood model you're referring to.
Information about Kenwood Kitchen can be found from many different resources. Some of the most reliable resources include the official Kenwood World website and Williams-Sonoma.
2.3 kw per hour on a 110-120 volt circuit.