Choosing a light fitting is only half the equation. The globe you put inside it plays just as significant a role in how a room actually looks and feels, yet it's often an afterthought, grabbed quickly off a shelf without much consideration for wattage, colour temperature or compatibility. The wrong globe can make an expensive, beautifully designed fitting look harsh, dim or simply wrong for the room it's in, while the right globe can make even a simple, affordable fitting look considered and warm.
Understanding a few key terms, wattage, lumens, kelvin and dimmability, makes choosing the right globe for any fitting in the home far more straightforward. This guide walks through exactly what each of these terms means in practical terms, and how to apply them room by room.
Step 1: Understand Lumens, Not Just Watts
For decades, Australians chose globes based on wattage, since higher wattage generally meant a brighter incandescent globe. With the shift to LED lighting, this relationship no longer holds true in the same way, since LED globes produce significantly more light per watt of energy used. This means comparing globes by wattage alone can be genuinely misleading.
Instead, look at lumens, which measure the actual amount of light a globe produces, regardless of the technology or wattage behind it. As a general guide, a standard 60 watt incandescent globe, once common in most Australian homes, produced around 800 lumens. An LED globe achieving the same 800 lumens might only use around 8 to 10 watts, delivering the same brightness for a fraction of the energy cost.
When shopping for globes, checking the lumen output on the packaging gives a far more accurate sense of actual brightness than wattage alone, particularly now that most Australian homes have transitioned away from incandescent and halogen globes toward LED.
Step 2: Choose the Right Colour Temperature for Each Room
Colour temperature, measured in kelvin, describes the warmth or coolness of a globe's light, and it has a significant effect on how a room feels, sometimes more than the fitting itself. Lower kelvin numbers produce warmer, more amber toned light, while higher kelvin numbers produce cooler, whiter light.
As a general guide, warm white globes, sitting around 2700K to 3000K, suit most living spaces in the home, including living rooms, bedrooms and dining areas, where a relaxed, inviting atmosphere is generally the goal. Cooler globes, typically 4000K and above, suit task focused spaces like kitchens, home offices and garages, where alertness and clarity matter more than ambience.
Bathrooms sit somewhere in between, and the right choice often depends on the specific area within the bathroom. Our earlier guide on What Colour Temperature Is Best for a Bathroom Mirror covers this in more detail, since mirror lighting specifically benefits from a slightly different temperature range than the rest of the room.
For a broader comparison of warm versus cool lighting and where each works best throughout the home, our guide on Warm vs Cool Light: Which One Should You Choose remains one of the most useful starting points before choosing globes for any new fitting.
Step 3: Match Brightness to the Room's Function
Beyond colour temperature, overall brightness needs to be matched to what the room is actually used for. As a general guide, ambient lighting for living spaces works well at around 15 to 20 lumens per square metre, while task focused areas like kitchens and home offices benefit from a brighter 30 to 40 lumens per square metre, particularly directly above workspaces like a kitchen bench or a desk.
For a full room by room breakdown of how to calculate and apply the right brightness level, our guide on How to Choose the Right Brightness for Every Room walks through the specific numbers for every room in the home, which pairs directly with the lumen guidance covered here.
Step 4: Check Dimmer Compatibility Before Buying
Not all LED globes are compatible with dimmer switches, and using a non-dimmable globe on a dimmed circuit can result in flickering, buzzing, or a globe that simply won't dim smoothly, if at all. If your home has dimmer switches installed, or you're planning to add them, always check the packaging specifically for dimmable LED globes, rather than assuming standard LED globes will work correctly on a dimmed circuit.
It's also worth noting that dimmer switches themselves need to be compatible with LED loads specifically, since older dimmers designed for incandescent globes don't always perform well with modern LED globes, even genuinely dimmable ones. If you're renovating or upgrading lighting throughout the home, it's worth checking both the globe and the dimmer switch itself are LED compatible, rather than assuming one component alone determines success.
Step 5: Consider Globe Shape and Fitting Type
Globes come in a range of shapes and base fittings, and it's worth checking compatibility with your specific fitting before purchasing. Standard bayonet (B22) and screw (E27) fittings remain the most common base types in Australian homes, though smaller fittings like candelabra bases (E14 or B15) are common in more decorative fittings such as chandeliers and some wall sconces.
Beyond the base fitting, globe shape affects how light is distributed and how visible the globe itself is within the fitting. Decorative filament style globes, for example, are designed to be seen and admired as part of the fitting's overall look, and suit exposed fittings like Pendant Lights where the globe itself is a visible design feature. Standard globes, by contrast, are designed to be concealed within a shade or diffuser and prioritise even light distribution over visual appeal.
Step 6: Think About Beam Angle for Directional Lighting
For fittings like Indoor Spotlights and Indoor Recessed Lights, beam angle becomes an important consideration alongside brightness and colour temperature. A narrow beam angle, typically around 24 to 36 degrees, creates a focused pool of light, useful for highlighting specific features like artwork or a kitchen island. A wider beam angle, typically 60 degrees or more, spreads light more broadly across a room, better suited to general ambient lighting rather than a specific focal point.
Choosing the wrong beam angle can leave a room with awkward, unevenly distributed pools of light, or conversely, a task light that's too broad and diffused to genuinely support close-up work like reading or food preparation.
Step 7: Factor In Globe Lifespan and Running Cost
LED globes typically last significantly longer than older incandescent or halogen alternatives, often rated for 15,000 to 25,000 hours of use compared to around 1,000 hours for a standard incandescent globe. This translates to years of typical household use before a globe needs replacing, and represents a genuine long-term cost saving, even though LED globes generally carry a higher upfront price than older globe technology.
When comparing globes for a larger lighting project, such as fitting out an entire home during a renovation, it's worth factoring in both the upfront cost and the long-term running cost, since a slightly more expensive, higher quality LED globe often works out considerably cheaper over its full lifespan than repeatedly replacing a cheaper, shorter lived alternative.
Common Light Globe Mistakes to Avoid
- Comparing globes by wattage alone rather than checking actual lumen output
- Choosing cool white globes for relaxed living spaces, resulting in a harsh, clinical feel
- Installing a non-dimmable globe on a dimmed circuit, leading to flickering or buzzing
- Ignoring beam angle when choosing globes for spotlights or recessed downlights, resulting in uneven light distribution
- Overlooking base fitting compatibility, leading to a globe that simply doesn't fit the intended fixture
Bringing It All Together
Choosing the right light globe comes down to understanding a handful of practical measurements, lumens for brightness, kelvin for colour temperature, and beam angle for directional lighting, then matching these to the specific room and fitting you're working with. Once you understand these fundamentals, choosing globes for any fitting throughout the home becomes a far more confident, considered decision, rather than a quick, last minute grab off the shelf.
Explore the full Lighting range to find fittings suited to the globes and brightness levels each room in your home genuinely needs.
