People agonise over grid size and then pick colour temperature in about four seconds. It should be the other way round. Size affects how much light you get. Colour temperature affects how the entire room feels, and it is far harder to live with the wrong choice.
What colour temperature actually means
Colour temperature is measured in Kelvin, written as K. Low numbers are warm and orange. High numbers are cool and blue.
- 2700K to 3000K is warm white, similar to an old filament bulb or a decent pub
- 4000K is neutral white, sometimes sold as natural white
- 5000K to 6500K is cool white or daylight, crisp and slightly blue
None is better than the others. They are tools for different jobs.
When to choose cool white
Cool white is the default for garages, and for good reason.
It shows detail. At 6000K and above, surface imperfections jump out. Swirl marks, holograms, uneven polish, scratches in a panel, all of it becomes visible in a way it simply is not under warm light. If you detail, correct paint, wrap, tint or spray, this is not a preference, it is a requirement.
It reads as clean. Cool light makes a space feel sharp and modern. Paired with grey tile flooring and black cabinets, it gives you that clinical showroom feel that dominates garage styling right now.
It keeps you alert. There is reasonable evidence that cooler light supports concentration. Whether or not you buy the science, most people find they work better under it.
Choose cool white for garages, workshops, detailing bays, mechanical work, gyms, offices and any space where accuracy matters.
When to choose warm white
Warm white is for spaces where people are the subject rather than the work.
It flatters skin. This is why barbershops, salons, tattoo studios and beauty rooms lean warm. Cool light is unforgiving on complexions, and if your customer sees themselves in your mirror under 6500K they will not love the result.
It makes a room feel comfortable. Warm light signals downtime. Garage conversions that have become bars, games rooms or lounges feel completely wrong in cool white, no matter how good the rest of the styling is.
It suits wood and warm materials. If your space has timber, brick, brass or leather in it, warm white brings those materials to life. Cool white flattens them.
Choose warm white for barbershops, salons, bars, cafés, games rooms, living spaces and any garage that has stopped being a garage.
The awkward middle ground
What if your garage is both? A place you work on the car during the day and a place you sit with a beer in the evening?
Two options.
The first is a kit with adjustable colour temperature, so you switch from cool to warm on the remote depending on what the room is doing that evening. This is the cleanest solution and it is why we build adjustability into our kits.
The second is layering. Run cool white hexagon lighting as your main work light, then add a warm secondary layer at low level, such as wall lights, LED strip behind a bench, or a floor lamp in the corner. Turn the main grid off and the room changes character instantly. This is standard practice in interior design and it works just as well in a garage.
How it affects photography
Worth a mention because so many of our customers film and photograph their spaces.
Cool white gives you accurate colour rendering and makes metallic paint pop, which is why detailing content almost always uses it. Warm white gives a moodier, more cinematic result but will make white cars look slightly cream unless you correct the white balance in camera.
If content is part of why you are lighting the space, go cool and warm it up in the edit if you want to. Doing it the other way round is much harder.
A quick test before you commit
Go and look at a space you like the feel of and find out what it uses. Modern detailing units are almost always around 6000K. Barbershops are usually 3000K. Retail is often 4000K as a compromise.
If you cannot tell, look at the white surfaces. If they look slightly blue, that is cool. If they look slightly cream, that is warm.
Frequently asked questions
Is cool white harsher on the eyes?
Not if the light is properly diffused and dimmable. Glare comes from looking at a bright point source, which is exactly what a diffused hexagon panel avoids.
Does colour temperature affect running cost?
No. Two panels at the same wattage cost the same to run regardless of Kelvin.
Can I mix warm and cool panels in one grid?
We do not recommend it. Mixed temperatures in a single plane look like a fault rather than a design choice. Layer them at different heights instead.
Compare our cool white kits with the 14 Grid Warm White, or browse the full hexagon lighting range.