Answer:
There are up to 12 lights and or plugs on that circuit. A 1000w HPS or Metal Halide light takes 9 amps at 120 volts so you can only run one on a wall outlet circuit. A standard dryer outlet is 220 volts and 30 amps so you can power up to six 1000 watt lights on that circuit.
Great Question! So the plug will go into the wall and electricity will hit the cord and power through the cord into the charger (Cordless) Now if you talking mobile phones such as iPhones. The battery powers wire and hardware to power your little mobile phone! Hope this helps.