20 lightbulbs at 100W each would consume 2kw, or about 20p an hour.
24hrs x 20p x 365 days = £175
So to consume £700 a year you'd need 80 lightbulbs in your house switched on 24/7. Come on. Really? 80 of these lightbulbs would cost £1,758.
80 of the standard energy saver bulbs would cost in the region of £30 and cost £140 a year to run, compared with the £35 for the 4.5W LED bulb.
A quick calculation shows it would take 17 years to break even on the cost between LED lamps and standard energy savers.
24hrs x 20p x 365 days = £175
So to consume £700 a year you'd need 80 lightbulbs in your house switched on 24/7. Come on. Really? 80 of these lightbulbs would cost £1,758.
80 of the standard energy saver bulbs would cost in the region of £30 and cost £140 a year to run, compared with the £35 for the 4.5W LED bulb.
A quick calculation shows it would take 17 years to break even on the cost between LED lamps and standard energy savers.