A simple comparison of two products that offer similar light output with an average
use of 4hrs per day
LED PRODUCT HALOGEN LAMP
product
3W, 130lm LED 20W halogen
useage
4hrs / day 4hrs/day
power consumption per day
0.012kWh 0.08kWh
running cost (@22c/kWh) per day
$0.0025 $0.0175
running cost per year
$0.9125 $6.3875
annual saving per light
$5.475
$5.475
saving for average house with 50 lights
$273.75
$273.75
carbon emissions per day
0.0095kg 0.0625kg
carbon emissions per year
3.4675kg 22.8125kg
life expectancy
20,000hrs + 3,000-6,000hrs
efficiency
approx 85% approx 10%
heat generation
cool to touch 500 deg
As technology advances the cost of LED lights are decreasing rapidly and the payback period in choosing an LED over a Halogen light is now only 2-3 years. The short payback period plus the environmental advantages now makes the choice of light quite simple.