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Switching to LED lighting is one of the simplest electrical upgrades you can make, and the savings can be significant
Halogen vs LED Power Usage
A standard halogen downlight typically uses around 50 watts of power. An equivalent LED downlight provides the same brightness while using approximately 7 watts.
Now let’s look at a common example.
Assume a home has 20 downlights that run for an average of 4 hours per day.
Halogen lighting usage
50 watts × 20 lights × 4 hours = 4,000 watt hours per day
This equals 4 kilowatt hours per day
LED lighting usage
7 watts × 20 lights × 4 hours = 560 watt hours per day
This equals 0.56 kilowatt hours per day
Annual Energy Cost Comparison
Using an average Perth electricity rate of $0.30 per kilowatt hour.
Halogen lighting
4 kWh per day × 365 days = 1,460 kWh per year
Estimated annual cost: $438
LED lighting
0.56 kWh per day × 365 days = 204 kWh per year
Estimated annual cost: $61
Estimated annual saving
Approximately $377 per year
These savings increase further if lights are used for longer hours or if more fittings are installed throughout the home.
Additional Benefits of LED Lighting
LED lights last significantly longer than halogen bulbs. Many LED fittings last over 25,000 hours, reducing replacement costs and maintenance.
LEDs also run cooler, which reduces heat buildup in ceilings and lowers the risk of electrical issues over time.
Lower power usage reduces strain on electrical circuits, which can help prevent nuisance tripping and improve overall system reliability.
Is an LED Upgrade Worth It?
For most Perth homes, the answer is yes. LED lighting upgrades pay for themselves through reduced energy bills, improved safety, and better lighting quality.
A licensed electrician can assess your existing lighting setup and recommend suitable LED replacements that meet current electrical standards.
