'Follow 10pm rule' as 10 devices cost £630 a year when not in use

Outdoor lighting left on overnight can drain a significant amount of energy. For example, two 60w outside lights left on for ...

'Switching off 10 devices at 10pm' could save £630 a year

Outdoor lighting left on overnight can drain a significant amount of energy. For example, two 60w outside lights left on for ...