Switching Power Supplies 30W 24V 1.3A w/cover

so when you get your home energy bill it lists the usage in kilowatt hours but when you go to the store you'll see things like 12 watt light bulbs 9 volt batteries and vacuum cleaners with 15 amps of sucking power but what do these numbers even mean I mean why do we have so many different units to measure something that seems as straightforward as electricity surprisingly the answer isn't just so appliance companies and physics professors can confuse you it's because several important things have to happen in an electrical circuit for electricity to flow and for work to be done you can think of a circuit kind of like the faucet on your kitchen sink if you want water to come out you need two things you need the water itself and some pressure to force it through the pipes out your faucet and into your neti pot similarly an electrical circuit uses electrons to carry the electricity kind of