Energy Saving Calculator

Wattage of your current bulb(s)                            Watts
I currently pay pence per unit of electricity*
Number of hours per day used hours
I use bulbs like this

Annual cost of running
current 100W bulbs
Equivalent Energy Saver bulb 20watts**
Cost of equivalent
Energy Saver bulb

£ 5.84
Total savings made over life
of Energy saving bulb
Based on 8000 hour bulb


Costs and savings calculated based upon typical domestic tariff of 10p per unit (kWhr)
Please note that this is an approximate value and that this exact power rating may not be available.

How Much Could YOU Save?

Some energy saving bulbs can be more costly than traditional incandescent bulbs, energy saving variants use revolutionary manufacturing methods to cut your electricity consumption and save you money. Energy saving light bulbs typically save around 80% more electricity than incandescent bulbs.

Use our energy saving calculator to work out the savings you could make over the life of the bulbs by replacing normal incandescent bulbs with energy saving equivalent bulbs.We have filled in average figures for you just in case you're not sure about your energy price.

There are current government drives to reduce our carbon emissions and we all have a responsibility to try and look after the environment.