Light colours, such as warm white and cool white, provide insights into the type of light emitted by a lamp. These colors can be further defined by their color temperature, measured in Kelvin (K). The Kelvin value indicates the warmth or coolness of the light, with lower values representing warmer light and higher values indicating cooler light.
- Cool white (approximately 4000K): emits a clear white light with a subtle blue glow.
- Neutral white (approximately 3500K): offers a neutral white light, positioned between cool white and warm white.
- Warm white (3000K): provides a pleasant white light.
- Extra warm white (2700K): offers a cozy white light with a gentle yellowish glow.
- RGB(+W): delivers colored light in addition to white light.
For instance, candlelight has a light temperature of around 1200K, while a halogen lamp usually falls within the range of 2800-3000K. Below, you can explore the various light temperatures achievable with different light sources.

Understanding light colors is crucial when selecting your lighting fixtures. Depending on your specific intended use, it is advisable to opt for warmer or cooler light in a room. In a living room, for example, people generally prefer a pleasant and warm yellowish light, while a cool white light might be more suitable for an office setting.
Moreover, there are dimmable lamps available that transition to warmer colors as they are dimmed, allowing you to create a cozy ambiance at home. Manufacturers such as Philips, Delta Light, and Modular Lighting offer a range of dim-to-warm lamps.
With certain variations of smart lighting, you can take it a step further and fully adjust the light color of your lamp to match the desired atmosphere. For instance, the Philips Hue White and Color Ambiance allows you to choose from a wide spectrum of white light shades and an extensive palette of over 16 million colors.