Residential Lighting
The color temperature of a bulb is measured in kelvins (K). The lower the number of kelvins, the yellower the light. The higher the number, the bluer the light.
Cool lighting (functional)13 W - 850 lm - 4,100 KWhiter light with bluish tint |
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Warm lighting13 W - 850 lm - 2,700 KYellower light, similar to incandescent |
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| Description | Colour temperature (K) |
| Warm or soft white | 2,700 - 3,000 |
| Cool white, daylight | 4,100 - 6,500 |