There are certain devices that use a lot of electricity and a set-top box is definitely one of them. These use a great deal of power even when they’re switched off while desktop computers and notebook computers are also up there in the list of power hogs.
Not that many people have them anymore, but multifunction fax machines use a great deal of power and again this is also the case when it is switched off. Cordless phone systems can also use a great deal of power when they’re in ‘off mode’, and it’s these types of devices you really have to watch out for.
Unplugging devices can be really beneficial and remarkably friendly to your wallet. Devices can still be big power consumers when they’re switched off but that’s obviously not possibly when they’ve been completely unplugged, and you should get into the habit of unplugging, especially for the devices you don’t frequently use.