The porch light also acts as a spotlight on the front door.
Porch light on all night cost.
100 watts times 24 hours equals 2400 or 2 4 kilowatt hours.
But a 100 watt light in my area costs 21 6 cents for 24 hours.
Installing security lights and leaving lights on at night are common tactics for deterring home burglaries.
My power company charges 9 cents per kilowatt hour.
For about 20 of our neighbors their solution is just to leave their lights on at all times.
So that you know it doesn t dim.
The problem with this is that there is a cost.
Another concern is that some people find it difficult to sleep if there is a light coming through the window at night.
Years ago your 7 cents would have been correct.
You can easily see who s approaching through either a window or peephole.
Leaving a light burning all night long wastes energy.
This will allow your porch light to be on only during night time hours saving energy and cost.
Leave the porch light on.
When you re home at night.
That s over 5 per month for a single fixture with three light bulbs.
But lighting up might not be an effective solution if you don t involve your neighbors.
Is it safer to keep porch lights on or off.
For example continuing the previous example of the cost for a light fixture with three bulbs that is on for 8 hours per day let s find the monthly cost.
Leaving the light on all night and off during the day will cost about 3 24 per month.
This is a good time to leave the porch light on.
It alerts burglars to your presence particularly if indoor lights are on too.
Leaving porch light on all night can help robbers see their actions.
More and more options are becoming available and cost less each time i shop for new bulbs.
Don t let its newfangledness confuse you because it s designed to fit any standard e26 light socket.
Actually leaving the porch lights on could encourage the burglary instead of discouraging it which may come as a surprise to many.
Security experts agree that always leaving the porch light on at night or just leaving it on when you leave will alert criminals that you are gone.
Assuming a 60 watt bulb the maximum our old.
We think it s an excellent choice for outdoor post fixtures where 360 degrees of bright light will illuminate both walkways and yards at night.
Price kwh cost per kwh price 43 2 kwh 12 kwh 5 18.