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Switch off an unused light
Electricity avoided equals lamp power multiplied by the time it would otherwise remain on.
One possibility
Another possibility01 / Why this can helpWhat changes the result
Existing LEDs change the size of the saving.
02 / One possible next stepChoose a suitable opportunity for this action. Start with what is feasible, and review how it works in your routine.
03 / Sources and scopeUS Department of Energy · Energy Saver Guide ↗References in the original project +
US DOE (2023); IEA Lighting Report (2022)
These bibliographic references come from the original cards. They provide context; they do not validate every numerical assumption below.
