IN THIS ARTICLE
Most Auckland homeowners already know LED lighting is more efficient than older bulbs. The question they actually want answered is: is the upgrade worth doing, what does it cost, and do I need an electrician?
Here’s the honest answer to all three.
How much can you actually save with LED lighting?
LEDs use roughly 75% less electricity than incandescent bulbs and around 50% less than older halogen downlights — which are still common in Auckland homes built between the 1990s and 2010s.
For a typical Auckland home with 20 downlights running 4 hours a day, switching from 50W halogens to 8W LEDs saves around $250–$350 per year on electricity at current Auckland rates. The exact saving depends on your current fittings, how many hours lights run, and your electricity plan.
LEDs also last significantly longer — typically 15,000–25,000 hours versus 1,000–2,000 hours for halogens. In practical terms, you’re replacing bulbs every 15–20 years instead of every 1–2 years.
What does a LED upgrade involve?
This depends on what you’re upgrading from.
Replacing halogen downlights (most common)
Halogen downlights use a transformer that’s incompatible with LED drivers. A direct bulb swap usually doesn’t work properly — you get flickering, buzzing, or LEDs that fail prematurely. The right approach is replacing the entire fitting with a LED-integrated downlight. This requires an electrician.
Replacing fluorescent tubes
Older fluorescent fittings in garages, workshops, and commercial spaces can often be retrofitted with LED tubes, but the ballast needs to be bypassed or replaced. This is electrical work requiring a licensed electrician.
Replacing standard bayonet or Edison screw bulbs
These are genuinely plug-and-play — you can swap these yourself. The savings are modest compared to downlight upgrades, but it’s a zero-cost-to-install option.
Does the whole house need upgrading at once?
No. Many Auckland homeowners start with the rooms where lights run longest — kitchens, living areas, hallways — and do the rest over time. A licensed electrician can quote per room or per fitting, and the job can be staged across multiple visits.
If you’re doing a renovation anyway, that’s the ideal time to upgrade all lighting at once — the labour cost per fitting drops significantly when an electrician is already on site.
What does LED lighting installation cost in Auckland?
| Scenario | Typical cost range |
|---|---|
| Single room downlight replacement (6–8 fittings) | $300 – $600 |
| Full house downlight replacement (20–30 fittings) | $900 – $1,800 |
| Commercial fluorescent to LED retrofit | $80 – $150 per fitting |
These are installed prices including fittings and labour. We use and recommend fittings with a minimum 5-year warranty — cheap fittings from hardware stores often fail within 2–3 years.
Do I need to tell my landlord before upgrading lighting?
If you’re a tenant, yes — get written permission first. LED downlight replacements involve changing fixed fittings. Most landlords are happy to agree since it reduces maintenance and power costs, but permission is required.
Common questions
Can I just swap halogen bulbs for LED bulbs myself?
For simple bayonet or screw fittings, yes. For downlights with transformers, no — the transformer needs replacing by a licensed electrician.
Will LEDs work with my existing dimmer switches?
Not always. Older dimmer switches are designed for higher wattage halogens and may not work correctly with LEDs. A compatible LED dimmer switch is usually needed — your electrician can advise and replace these at the same time.
What colour temperature should I choose?
Warm white (2700–3000K) suits living areas and bedrooms. Cool white (4000K) works well in kitchens, bathrooms, and garages. Daylight (5000–6500K) is used in workshops and commercial spaces.
Thinking about upgrading to LED?
