Most of these outlets give you access to the standard 120 volts of electricity, which is plenty to power everyday devices. For certain applications, however, you need more power. That's where 240 ...

The way you get a 240-volt circuit is simple. A “double-pole” circuit breaker is clipped into both 120 buses at the same time, so the voltage to the circuit is doubled. That’s why these ...

These chargers plug into an ordinary household outlet and deliver around 15 amps maximum from a 120-volt socket ... These chargers use a 240-volt outlet, which is found in most homes, or a ...