What happens if you leave a light on for a month?
What happens if you leave a light on for a month? If the light bulb is not in any improper place it will just be on until it burns after some 1000 hours (about 42 days). If it is in some enclosed place where it should not be then it could cause damage, even fire. A 60 watt bulb uses 60 kWh during its life, that is about 7 dollars or euros.
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