On average in UK, running a 60-watt light for 50,000 hours would cost £300 in electricity alone. Running an equivalent LED light that uses only 15 watts for 50,000 hours will cost only £75 under the same scenario. And you would be changing incandescent bulbs in that period, because 50,000 hours is 50 times the life of a typical incandescent and five times that of a fluorescent lamp.

With the following calculator, you can easily calculate how much energy you can save for protecting our exhausted planet as well as money you will save each year, when replacing your traditional lamps with Mason's LED replacements.

(1) Wattage of your current item	Watts
(2) You use	item(s) like this
(3) Number of hours per day used	hours
(4) Electricity costs you	£/kwhr
(5) Wattage of Mason's equivalent replacement	Watts (No idea? Check it.)
Annual cost of running your current item(s)	£
Annual cost of Mason's LED replacements	£
Annual saving of money by Mason's LED replacements	£
Annual saving of electricity by Mason's LED replacements	kwhr