Article —
Outdoor lighting ideas that survive Melbourne weather.
by David Millar · Licensed electrician REC-22849Melbourne weather is hard on anything electrical that lives outside. The fittings that fail in year two are almost always the ones chosen for looks rather than for an IP rating — here's how to get both.
Every autumn we pull out outdoor lights that were installed two or three years earlier and have quietly filled with water. Melbourne's weather does that. It's not the cold that kills outdoor fittings — it's the rain arriving sideways in July, the summer UV that turns cheap plastic chalky and brittle, and the freeze-thaw of a Blackburn frost cracking seals that were never rated for it.
Good outdoor lighting isn't about buying the most expensive fitting. It's about matching the fitting to where it lives and wiring it properly. Here's how to think about it.
The spec that matters: the IP rating
Every outdoor fitting has an IP (Ingress Protection) rating — two digits that tell you what it can survive. The first digit is dust, the second is water. For Melbourne backyards:
- IP44 is the minimum for anything outdoors — it handles splashing rain. Fine under a deep eave.
- IP54 or IP65 for anything exposed — garden spikes, wall lights on weather-facing walls, bollards. IP65 handles direct jets of water, which is what a northerly storm delivers.
- IP67/IP68 for anything that sits in the ground or could end up underwater — in-ground uplights, pond and water-feature lights.
The bargain fittings at the big-box stores are often IP44 where you actually need IP65. Check the marking on the fitting, not the photo on the box.
Think in layers, not fittings
The yards that look good at night use three layers, and you don't need many lights in each:
Getting around. Path lights, step lights and a light at the gate. Low and aimed down is the trick — you want to see the path, not the fitting. Glare from an eye-level spike light makes it harder to walk, not easier.
Security. A sensor light covering the driveway and side gate, and one over the back door. More on these below.
The bits you want to show off. An uplight in a tree, a wash of light across a feature wall, lights in the entertaining area. This is the layer people enjoy, and it works best when the first two layers are quietly doing their jobs.
A common mistake is trying to make one layer do all three jobs — a single blinding floodlight over the back yard. It makes the yard feel like a prison exercise area and kills every plant's shadow. Two or three small, aimed fittings beat one big one every time.
Low-voltage garden lighting is the quiet winner
For garden beds, paths and trees, extra-low-voltage systems (12V) are worth a serious look. The cable is smaller and easier to bury, a cut cable is an inconvenience rather than a shock hazard, and modern LED 12V fittings are excellent. They're also forgiving if you want to move things around as the garden grows — which it will.
Mains-voltage (230V) fittings still have their place — wall lights, anything fixed to the house, fittings that need serious output. But fixed 230V outdoor wiring is prescribed electrical work: it needs a licensed electrician, proper burial depth or conduit for any underground run, safety switch protection on the circuit, and a Certificate of Electrical Safety at the end. That's not bureaucracy — underground mains cable installed by guesswork is one of the more dangerous things we get called to fix.
Sensor lights that don't drive you mad
A well-set-up sensor light is great security. A badly set-up one triggers every time the neighbour's cat goes past and teaches you to ignore it.
The setup matters more than the fitting:
- Aim the sensor across the approach path, not along it — movement across the detection field is picked up far more reliably than someone walking straight at it.
- Set the lux level so it doesn't trigger at dusk for an hour while there's still light in the sky.
- Put it high enough that it can't be reached and disabled from the ground.
- Use a fitting with adjustable on-time, and set it long enough to walk from the car to the door.
If you want the light to also be useful — rather than just a burglar alarm — a sensor light with a low-level "always on" mode that ramps up on movement is a good middle ground for entertaining areas near a door.
Entertaining areas: warm light, separate switches
For decks and alfresco areas, warm-white light (2700–3000K) is what makes a space feel like somewhere you want to sit. The cool-white 5000K fittings that are fine for a driveway make a dinner table look like a hospital corridor.
Festoon lights strung over a deck are popular for a reason — they're cheap, warm, and forgiving. Buy outdoor-rated ones with sealed lamp holders and hang them off proper catenary wire, not the light string's own cable, which isn't built to take tension in the wind.
Whatever you install, give the entertaining lights their own switch or dimmer, separate from the security and path lights. Being able to kill everything except the festoons from the back door is the difference between lighting you use and lighting you stop bothering with.
Power outdoors: the bit everyone forgets
Half the outdoor lighting jobs we do in Ringwood and Vermont end up including a couple of weatherproof power points, because the moment the yard is lit, people want to run the smoker, the patio heater, the pond pump or the Christmas lights. Weatherproof GPOs (IP53 or better, with a proper cover that closes over a plug) are cheap to add while we're already there running cable.
Outdoor circuits need safety switch protection — if your home's outdoor power isn't on an RCD or RCBO, that's worth fixing regardless of any lighting plans.
Pools and spas: a different rulebook
If your lighting plans go anywhere near a pool or spa, stop and do it properly. AS/NZS 3000 sets strict zones around water — how close a fitting can be, what voltage it can run at, and how it's protected. Zone rules are why pool lights are almost always extra-low voltage and why you won't see a competent electrician mount a mains floodlight next to the water line. This is not a DIY category, even by the relaxed standards of garden lighting.
What to skip
- Cheap solar path stakes. Fine for a rental or a stopgap, but the batteries die in two winters and the output is a faint blue smudge. If you want real light on a path, wire it.
- Any mains-voltage DIY. Running 230V extension leads through garden beds as "temporary" lighting is how people get hurt. Temporary has a way of becoming permanent.
- Fittings aimed at the neighbours. A floodlight over the fence is the fastest way to make an enemy. Aim everything down and in.
Getting it installed
A typical backyard lighting job for an eastern suburbs home — a few path lights, a sensor light, wall lights on the alfresco and a weatherproof power point or two — is usually a day on the tools, sometimes two if there's trenching involved. We'll walk the yard with you first, mark out where fittings should go, and tell you honestly which of your Pinterest ideas will survive a Melbourne winter.
Need it sorted? Get in touch or read more about our lighting installation work — we'll come out, walk the yard, and give you an itemised quote before anyone lifts a shovel.