Power usage

[Skvez]

Remember that the energy that incandescent lamps don't put out as light they put out as heat.
Since this is the UK most of the time we need heat inour homes.
Changing your incandescent lamps for LEDs will save you some electricity but you'll use a little more home heating oil (or whatever) keeping the house at the same temp.
This is also true for all those 'paracitic' things on standby. The energy isn't being lost it's just being turned into a little heat.