Warm White or Cool White? A Simple Guide to Color Temperature
EyeRelief Studio
Two lamps can be identical and still feel completely different — because of the color of their light. That color is measured in Kelvin (K). The lower the number, the warmer and more golden the light; the higher the number, the whiter and cooler.
The four numbers worth knowing
- 2700K – Warm white. The glow of a classic incandescent bulb or candlelight. Cosy, relaxing, flattering for skin. Perfect for living rooms and bedrooms.
- 3000K – Soft white. Still warm but a little cleaner. The most versatile choice — ideal for dining rooms, entries and natural materials like travertine, marble and wood.
- 4000K – Natural white. Neutral and crisp. Good for kitchens, bathrooms, home offices and anywhere you need to see true colors.
- 5000–6500K – Cool white / daylight. Bright, bluish and energising. Best kept for garages, workshops and task areas — it can feel clinical at home.
Room by room
- Living room: 2700–3000K.
- Bedroom: 2700K — warm light in the evening helps the body wind down.
- Dining room: 2700–3000K, ideally dimmable. Food and faces look their best.
- Kitchen: 3000K for pendants, 3500–4000K for work surfaces.
- Bathroom: 3000–4000K around the mirror.
- Outdoor & porch: 3000K — welcoming and less attractive to insects than cool white.
EyeRelief tip — Keep the same color temperature throughout one open space. Mixing 2700K and 6000K in the same room is the number-one reason a space feels 'off'.
Why many of our lamps offer three colors
A lot of EyeRelief pieces — such as the cordless Heye™ or the Wanxing™ floor lamp — let you switch between warm, neutral and cool light. Use warm light in the evening, neutral light for reading or work. Look for "3 colour temperatures" or "3-colour switch" in the product details.
Brightness is a different thing
Kelvin describes the color, not the strength. Brightness is measured in lumens. As a rough guide: 800 lumens is about a classic 60W bulb. A cosy living room needs around 10–20 lumens per square foot; a kitchen 30–40.
Find your light
Explore warm, atmospheric pieces in Ambient Lamps, Table Lamps and Living Room lighting.
