I've got an analogy that may not be technically perfect but it'll get you a lot closer to understanding WTF it all means.

The formula is

**times**

*volts***=**

*amps***.**

*watts*Power (watts) is the total amount of work being done. So think about something almost all Burners are familiar with: BICYCLES!

The total Power is the bike moving down the Esplanade at say 10 MPH. Think about the speed you are pedaling as your

**, and how hard you push on the pedals as your**

*voltage***(current).**

*amperage*You could accomplish that 10 MPH down the Esplanade by pedaling really fast, in low gear, and not pushing very hard on the pedals. That's like higher

**, and fewer**

*volts***. You could also accomplish the 10 MPH ride down the Esplanade by shifting to high gear, pedalling slower but pushing a lot harder on the pedals. That's like low**

*amps***, but higher**

*volts***.**

*amps*This is why you need larger wires for low voltage but high current power use; lets say you're really super strong and leave your bike in top gear when pedaling through super soft playa, dragging a wagon full of beer. You'd have to pedal really hard - but at low speed - and you'd need a strong chain, strong pedals, strong crank, etc. to handle it. You'd need big stout wires to handle all those

**.**

*amps*You could also shift to super-low gear and pedal really fast, but much more lightly. You wouldn't need as strong a chain, pedals, etc.

Low voltage doesn't shock you when you touch it; you can grab both terminals of a car battery and feel nothing. Take that same battery, run it through an inverter that steps that same battery power up to higher voltage (but less amps) and it will shock the daylights out of you if you touch the wires coming from the inverter.

It's kinda like if you're pedaling your bike really hard but slowly (high

**/low**

*amps***) and someone stuck their hand in the way of your pedals. It wouldn't hurt, you'd barely bump them. If you were in low-low gear pedaling softer but really really fast and someone stuck their hand in the way of your pedals, they'd get whacked.**

*volts*So...

**times**

*volts***equals**

*amps***.**

*watts***is the total power.**

*Watts*100

**of current draw at 12**

*amps***is 1200**

*volts***of power. And it would require some BIG wires. This is why power companies use super-high voltage wires to transmit power over long distances. Lower voltage would require giant wires to send the same amount of power.**

*watts*10

**at 120**

*amps***is the same 1200**

*volts***.**

*watts*Amp-hours is simply how long something (like a battery) can deliver power. A 12-volt battery that is rated at 100 amp-hours theoretically can put out 100 amps (at 12 volts) for one hour. Or, it could make 10 amps for 10 hours. Or 1 amp for 100 hours.