Yes — and for most Hills District and Hawkesbury homes, the payback period is 12 to 24 months through energy savings alone. After that it’s pure saving. If your home still has halogen downlights, upgrading to LED is one of the simplest, most cost-effective electrical improvements you can make.
Here’s an honest breakdown of the costs, savings, and practical considerations.
How Much Energy Do Halogen Downlights Use?
A standard halogen downlight uses 50 watts. A quality LED replacement uses around 8–10 watts — an 80–85% reduction in energy consumption for the same light output.
The difference adds up fast. A home with 20 halogen downlights running for 4 hours a day uses 4 kilowatt-hours of electricity just from the lighting. At current NSW electricity rates, that’s roughly $600–$700 per year in lighting costs alone. The same home with LED downlights uses under 1 kilowatt-hour for the same 4 hours — cutting that annual cost to around $100–$120.
The saving on a 20-light home is approximately $500 per year.
How Much Does a Halogen to LED Upgrade Cost?
Saunders Electrical Group charges from $60 + GST per light for a LED replacement of an existing downlight. For a home with 20 lights, that’s $1,200 + GST for the full installation.
At $500 per year in energy savings, the payback period on that investment is just over two years. After that, you’re saving $500 every year going forward — and that’s before factoring in the reduced globe replacement costs, since quality LED downlights last 25,000 to 50,000 hours compared to 2,000 hours for a halogen globe.
Beyond Energy Savings — The Other Reasons to Upgrade
Halogen downlights run extremely hot. A halogen globe reaches temperatures of 200–300 degrees Celsius during operation. This creates a genuine fire risk if insulation in the ceiling comes into contact with the fitting — a common situation in Hills District homes that have had insulation installed or upgraded. LEDs run cool, eliminating this risk entirely.
Less heat means less air conditioning. Twenty halogen downlights running in a living area generate significant heat load. Switching to LED reduces the heat entering the room, which lowers the demand on your air conditioning — an additional saving on top of the direct energy reduction.
Better light quality. Modern LED downlights produce consistent, flicker-free light from the moment they’re switched on. They’re available in warm white (2700–3000K) for living areas and bedrooms, and cool white (4000K) for kitchens and bathrooms — giving you more control over the atmosphere in each room.
No more globe replacements. Halogen globes blow regularly — typically every 1,000–2,000 hours. Quality LED downlights last 25,000–50,000 hours. In practical terms, you’re unlikely to ever replace an LED globe for the life of the fitting.
Do I Need a Licensed Electrician to Replace Downlights in NSW?
Yes. Replacing downlights is classified as electrical work in NSW and must be carried out by a licensed electrician. This applies even when swapping like-for-like fittings on an existing circuit — most recessed downlights are hardwired and require a licensed electrician to replace safely and correctly.
Is It Better to Replace All Lights at Once?
Yes — for two reasons. First, mixing halogen and LED fittings in the same room produces noticeably different light quality and colour temperature, which looks inconsistent. Second, the per-light cost is lower when replacing more lights in a single visit — the travel and setup time is shared across all fittings.
If you’re going to upgrade, do the whole house in one visit and get the maximum benefit immediately.
Ready to Upgrade?
Saunders Electrical Group installs LED downlights across Castle Hill, Kenthurst, Baulkham Hills, Kellyville, Windsor, Richmond, and all surrounding Hills District and Hawkesbury suburbs. LED replacements from $60 + GST per light, with quantity discounts for larger jobs.
Read more on our downlight installation page or call 1300 993 560 to book a free quote.