A led light bulb uses
approximately 5 to 10 watts; on average, it operates for about 7 hours a
day.
Enter the number of usage hours and power setting (in wattage), then click "Calculate"
to find the power consumption
of led light bulb using 10 watts for 7 hours
a day at LKR රු5 per kWh. You will also see the running cost per hour, day, week, and year.