Warm or Cool? A Plain Guide to Light Colour

21 Jul 2026

You can buy a beautiful chandelier, hang it at exactly the right height, and still walk into a room that feels like a pharmacy. That is almost always the bulb, not the fixture.

Light colour is measured in Kelvin, and the number is counter-intuitive: lower numbers are warmer, higher numbers are colder. That is the only confusing part. Everything else is straightforward.

What the numbers actually look like

Kelvin What people call it What it looks like
2200–2500K Amber, candle Very orange. Decorative bulbs and heritage lanterns.
2700K Warm / وارم The colour of an evening at home. The default for living rooms and bedrooms.
3000K Warm white Slightly crisper than 2700K. Good in kitchens and bathrooms without going cold.
4000K Neutral / cool white Office light. Honest for tasks, unforgiving for faces.
5000–6500K Daylight / وايت Blue-white and clinical. Belongs in a workshop or a garage, not a reception.

Which room gets which

  • Living room and reception — 2700K. This is the one that makes a room look expensive. Warm light flatters wood, fabric and skin; cool light flattens all three.
  • Bedroom — 2700K, and lower if you can. Blue-heavy light in the evening genuinely does interfere with getting to sleep, which is not a marketing claim but a well-documented physiological effect.
  • Dining table — 2700K. Food looks better under warm light. This is not subtle; try it once.
  • Kitchen — 3000K for the ceiling, and you can go to 4000K over a work surface where you are chopping things. Below the eye line, function wins.
  • Bathroom — 3000K. Warm enough not to be unkind at 7am, crisp enough to shave or apply make-up by.
  • Hallway and stairs — 2700K. A warm entrance is the first thing anyone feels about a home.

The mistake nearly everyone makes

Mixing colours within one sightline. If you can see two lights from where you are standing and one is 2700K while the other is 4000K, the room reads as broken — and most people cannot say why, they just don't like it.

This happens constantly in Egyptian flats, because bulbs get replaced one at a time, whatever the kiosk downstairs had that week. It is the cheapest possible fix and the biggest single upgrade available to most homes: buy the bulbs for a whole room at once, from one box.

Even within a spec, brands vary. Two different 3000K bulbs from two different makers will not match perfectly. Same room, same box.

The number nobody mentions: CRI

Colour Rendering Index measures how honestly a light shows colour, on a scale to 100. Cheap LEDs run 70–80. Good ones are 90+.

This matters more for us than for most sellers, and we will say so plainly: brass looks dead under low-CRI light. A solid brass sconce you paid properly for will look like painted plastic under an 75-CRI bulb. If you have bought anything from our brass and bronze collection, put a CRI 90+ bulb in it. The difference is not marginal.

Look for "CRI 90" or "Ra 90" on the box. It costs a little more per bulb and it is the highest-return few pounds in the entire room.

A short word on dimming

A dimmable warm bulb on a dimmer switch is the closest thing to a cheat code in home lighting — one fixture becomes a bright room light at 7pm and a soft one at 11.

Two warnings, honestly given. Not every LED bulb is dimmable; the box will say. And not every LED works with every dimmer — old dimmers designed for filament bulbs often make LEDs flicker or buzz. If you are wiring a new flat, ask the electrician for LED-compatible (trailing-edge) dimmers.

Bulbs and our fixtures

Bulb type, wattage and whether bulbs are included vary by piece, and the confirmed details are listed on each product page rather than promised in general here. If a spec you need is missing from a page, message us on WhatsApp and we will tell you — including when the honest answer is that we are still confirming it with the supplier.

What we can say across the range: every fixture carries a 3-year warranty, arrives in 2–4 days in Cairo and Giza, and can be returned free from your door within 14 days with a refund inside 72 hours.

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