See the table below for the significant savings to be made by using LED
lights. You will see that quite apart from the environmental contribution, it is
quite possible to offset the extra cost of purchase with the saving in
electricity cost.
Comparisons based on running 160 traditional small-bulb fairy lights or
replacing them with 150 indoor LEDs; and 100 large-bulb outdoor Christmas lights
replaced with 150 outdoor LEDs. Electricity cost based on an estimated UK average of 10p per unit
(kilo-watt per hour), and running the lights for a 6-week period for 12 hours
per day. The results show that LED lights are roughly TEN TIMES cheaper than
traditional lights to run; see below for actual figures and potential savings.
| |
Classic small bulb 160 |
LED indoor 150 |
Outdoor large bulb 100 |
LED outdoor 150 |
| Energy Consumption |
60.48 kwh |
6.95 kwh |
151.2 kwh |
7.56 kwh |
| LED percentage saving |
|
88.5% |
|
95% |
| Cost of electricity |
£6.05 |
£0.70 |
£15.12 |
£0.76 |
| MONEY SAVED |
|
£5.35 |
|
£14.36 |
If you require more specific technical information, please see the data below
for the power ratings of single LEDs which were used to compile the above table:
Outdoor LED bulb = 0.1w = 0.000435A @ 230V (A string of 40 LEDs
= 4w / 0.017A @ 230V)
Indoor LED bulb = 0.092w = 0.0004A @ 230V (A string of 40 LEDs = 3.68w /
0.016A @ 230V)
