Or switch to LEDs instead? £84: savings per year from switching off a single light | via @Telegraph http://www.telegraph.co.uk/finance/personalfinance/money-saving-tips/11888968/84-savings-per-year-from-switching-off-a-single-light.html …
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Or switch to LEDs instead? £84: savings per year from switching off a single light | via @Telegraph http://www.telegraph.co.uk/finance/personalfinance/money-saving-tips/11888968/84-savings-per-year-from-switching-off-a-single-light.html …