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How to Change LED Downlight

17/11/2025
by Rick Coleman
How to Change LED Downlight

G'day! Got a downlight on the fritz? Or maybe you're just sick of that old, daggy-looking halogen and want to upgrade to a schmick, energy-saving LED?

It sounds like a dead simple job, but when you ask, "how to change led downlight," you're actually asking one of two very different questions. Are you trying to change just the globe, or the whole bloody fitting?

One is a quick DIY. The other is a job for a pro, and trying to "have a go" yourself is a fair dinkum dangerous (and illegal) mistake. Let's get the lowdown.

Scenario 1: How to Change an LED Downlight Globe (The Easy DIY Bit)

This only works if you have the older style of downlight fitting that uses a replaceable globe. The most common one you can easily swap yourself is the GU10 globe.

What it looks like: A globe with a "twist and lock" base. It has two short, chunky, 'foot-like' pins. This globe runs on 240V, so there's no transformer in the ceiling.

Your Safe, Step-by-Step Guide:

  1. SAFETY FIRST! KILL THE POWER! This is non-negotiable, mate. Go to your switchboard and flick the circuit breaker for your lights to the OFF position. Flick the wall switch on and off to be 100% sure the power is dead.
  2. LET IT COOL! If the light was just on (especially if it was an old halogen), it'll be stinking hot. Give it 10 minutes to cool down before you stick your fingers near it.
  3. TWIST AND REMOVE: To remove the globe, you usually need to push it gently upwards and twist it anti-clockwise (about a quarter turn). The globe should then drop out.
  4. SLOT THE NEW ONE IN: Line up the two 'feet' of your new GU10 LED globe with the socket, push it gently up, and twist it clockwise until it locks firmly in place.
  5. POWER ON: Flick the circuit breaker back on at the switchboard. Job done. You beauty!

The Tricky 12V (MR16) Globe: Why It's a Pain

If your old globe has two thin, pointy pins (an MR16), it's a 12V globe. This means there's a transformer in your ceiling. If you just swap the old halogen for a 12V LED, it'll probably flicker, buzz, or not work at all. This is because the old transformer is expecting a 50W load, not a 6W one. Fixing this means replacing the transformer in the ceiling – which is a pro job.

Scenario 2: How to Change an LED Downlight Fitting (The Pro-Only Job)

This is the most common scenario in any modern Aussie reno. Most new LED downlights are 'integrated' or 'sealed' units. You can't change the globe because the light and the fitting are all one piece.

If your light is knackered, or you're upgrading from an old halogen fitting, you need a full LED downlight replacement.

THE CRITICAL SAFETY WARNING: THIS IS 100% NOT A DIY JOB!

Righto, let's get dead serious for a sec. This is the most important part of the whole article. You might be handy with the tools, but you cannot install or replace a hardwired LED downlight fitting yourself.

Why? Because you're dealing with 240V mains power, up in your ceiling cavity, often surrounded by insulation and timber.

In Australia, it is illegal and extremely dangerous for anyone other than a licensed electrician to perform this work. A simple mistake can lead to a fatal electric shock or a house fire, and it will void your home insurance in a heartbeat. Don't be a galah – it's just not worth the risk.

A qualified professional will:

  1. Safely isolate and disconnect the old 240V wiring.
  2. Remove the old fitting (and the old transformer, if it has one).
  3. Install a new, modern, compliant LED downlight.
  4. Ensure the new fitting is IC-4 rated, which means it's safe to be covered by your ceiling insulation (a massive safety upgrade!).
  5. Test the circuit to make sure everything is 100% safe and compliant with Australian standards.

A Professional Job Needs Professional Gear

When a licensed electrician turns up to do your LED downlight replacement, they're going to do the job right with trade-quality gear. They won't risk their reputation on dodgy fittings from a discount bin; they get their supplies from a trusted electrical wholesaler because they know the gear is genuine and compliant with Aussie standards.

As one of Australia's most comprehensive electrical wholesaler and supplier networks, Schnap Electric Products stocks the lot for the professional installer. They've got a massive range of high-quality, IC-4 rated integrated LED downlights (many with 'Tri-Colour' switches so you can pick your perfect light colour). Plus, they provide all the compliant wiring, switches, and dimmers that a qualified professional needs to get your home looking schmick, safe, and built to last. For a job that's bright, safe, and flicker-free, the pros rely on a supplier like Schnap Electric.