Ledvance Highbay 90W 840 115D | DALI

Light colour is also known as colour temperature and is expressed in Kelvin (K). You can choose from:

• Extra warm white (1700K - 2700K). Atmospheric light. For places with a relaxing character.
• Warm white (>2800K). Neutral and soft light. For common areas such as halls, corridors, foyers.
• Cool white (>3400K). Fresh and natural light. Good for focus/concentration in schools and offices
• Daylight white (>5000K). Equals natural daylight. Suitable for situations where a lot of light is needed.

The colour code is a combination of the colour rendering index (CRI) and the colour temperature (K). The first number refers to the CRI (1 = very poor colour rendering, 9 = maximum accuracy). The second and third numbers refer to the colour temperature. For example, a light with a colour code of 830 has very good colour rendering and produces a warm white light.

The colour rendering index (CRI) indicates how accurately colours are represented under a beam of light. The index goes from 1 to 99, with a CRI of 1 being the poorest and a CRI of 99 being the best possible. Be careful not to confuse colour rendering with colour temperature (K).