How Many Downlights Do I Really Need? Practical Layout Tips for Every Room
Downlights are one of the most requested electrical upgrades across homes in Melbourne’s eastern suburbs. They offer a clean, modern look, save energy (especially when LED), and can significantly improve the functionality of a space, if they’re installed properly.
But here’s the catch: we often get called in after someone’s had downlights installed poorly. Either the room is too dim, overly bright, or riddled with shadows and glare. So how many downlights do you actually need, and where should they go?
Here’s a straightforward guide to planning your lighting layout for each room in the house, based on what works across Croydon, Ringwood, Mooroolbark and beyond.
💡 The Basics: What Affects Downlight Quantity?
Before jumping into room-by-room tips, it’s worth knowing what affects how many lights you’ll need:
- Room size – Bigger rooms obviously need more light.
- Ceiling height – Higher ceilings require more lumens or tighter spacing.
- Colour scheme – Dark walls and floors absorb more light.
- Use of space – Task lighting (e.g. over benches) needs to be more focused than general ambient light.
- Beam angle – A wider beam angle covers more area but may create overlap.
🔲 Living Room Lighting Layout
The living room is a place to relax, so lighting needs to be flexible rather than overly bright.
Our recommendation:
- 1 downlight per 2–2.5 square metres
- Dimmers are essential — allow mood lighting for TV time
- Avoid placing lights directly over the TV to prevent screen glare
- Add task lighting separately (like a reading lamp or pendant)
Extra tip: For large spaces or open-plan rooms, consider splitting downlights into zones so you can control different areas separately.
🍽️ Kitchen Lighting – Focus on Function
Kitchens are task-heavy zones — so they need clear, shadow-free lighting.
Our recommendation:
- Downlights spaced around 1.2–1.5m apart
- Align with benchtops rather than in the middle of the room
- Use narrower beam angles for benchtop task lighting
- Complement downlights with under-cabinet LED strips where possible
🛏️ Bedroom Lighting – Less is More
Bedrooms don’t need intense overhead lighting. You’re better off with soft, dimmable light for comfort.
Our recommendation:
- 1 light per 2–3 square metres
- Place lights around the bed, not directly above it
- Add pendant or wall lighting for reading
- Always use dimmable fittings to reduce brightness
🚿 Bathroom Downlights – Get it Right the First Time
Bathrooms are small but tricky. You’ll want to avoid shadows while staying compliant with wet-area safety rules.
Our recommendation:
- 2–3 well-placed IP-rated downlights for a standard bathroom
- Avoid fittings directly above your head when at the vanity, excessive reflection off vanity mirror can be an issue
- Achieve symmetry while taking large bathroom exhaust fans into account
🏠 Hallways & Entryways
These areas benefit from bright, even lighting — but don’t overdo it.
Our recommendation:
- One downlight every 2–3 metres in a hallway
- Use a wide beam angle to reduce shadows
- Consider motion sensors for convenience (especially near the front door or garage entry)
📏 Quick Reference Guide
| Room | Spacing | Special Considerations |
|---|---|---|
| Living | 2–2.5m | Use dimmers, zone lighting |
| Kitchen | 1.2–1.5m | Focus on benchtop lighting |
| Bedroom | 2–3m | Avoid directly over beds |
| Bathroom | Varies | Use IP-rated fittings |
| Hallways | 2–3m | Wide beams or motion sensors |
Common Mistakes to Avoid
- Over-lighting the space – Too many downlights can make the room harsh and clinical.
- Ignoring beam spread – Not all downlights are equal. A 60° beam vs 100° will light very differently.
- Poor circuit planning – Having all lights on one switch limits flexibility.
- No dimmers – Fixed brightness limits comfort and increases power use.
- Wrong colour temperature – Warm white (2700K–3000K) works well in bedrooms and living rooms, while cool white (4000K+) is better in task areas.
Let Us Help You Plan It Right
We’ve installed thousands of downlights across Melbourne’s south east — from small unit upgrades to full lighting layouts in new homes. We know what works and how to avoid the pitfalls of poor placement and bad fittings.
Whether you’re upgrading a single room or rethinking your whole lighting setup, our Downlight Installation service ensures clean, compliant and safe work every time. We can supply the fittings or work with your preferred product.
For help with layout, spacing or dimming options, feel free to get in touch. We’re always happy to talk lighting!