Warm white vs soft white: picking the right bulb for your lamp

Two identical lamps can feel completely different depending on the bulb inside them. Before blaming a lamp for feeling too cold or too dim, it is worth checking the bulb first, since that single choice affects the mood of a room more than almost anything else on this list.

What the numbers actually mean

Bulb packaging usually lists a colour temperature in Kelvin. Lower numbers look warmer and more amber, higher numbers look whiter and more neutral. Most home lighting sits somewhere between 2700K and 3000K, which is where "soft white" and "warm white" both live, just at slightly different points on that range.

Soft white (around 2700K)

This is the closest match to old incandescent bulbs: gentle, a little yellow, and forgiving on skin tones and wood finishes. It suits bedrooms, living rooms and anywhere meant for winding down. A lamp with a fabric shade, like BrassGlow, tends to soften soft white even further, since the fabric diffuses it before it reaches the room.

Warm white (around 3000K)

A touch crisper than soft white, warm white keeps some of that cosy amber tone while giving slightly more clarity, which makes it a better fit for reading corners or a lamp that needs to do double duty for both mood and task lighting.

Match the bulb to the shade material

A denser shade, like the terracotta pleats on ClayGlow, will hold onto more warmth than an open woven shade, which lets more of the bulb's true colour through. If a lamp feels dimmer than expected, the shade material is often the reason, not the bulb wattage.

When in doubt, soft white is the safer default for most living spaces. Save warm white or brighter bulbs for the one or two lamps that actually need to work harder, like a desk or reading lamp.