For brightness, the correct measurement is lumens. Kelvin measures colour temperature, not brightness. How bright is 2700 Kelvin or 5000 Kelvin?.So it would be wrong to think on the lines that so many lumens will equal to a certain Kelvin. These two readings are not directly related. How can I calculate how many Lumens to Kelvin?.However, in some places, especially where you need task lighting, you may want to use LED bulbs with a higher Kelvin reading.Īlso, generally speaking, a 5000K LED bulb will appear brighter than a 2700K bulb, but that’s because of the former produces a light that has a higher contrast. So you need to look at an LED bulb’s lumens rating to find out how bright it would be.įor most purposes in a home, 2700K – 3000K is likely to prove sufficient as such bulbs help create a relaxing and warm ambience. It is Lumens, rather than Kelvin, that measures the total light output. Kelvin, however, has got nothing to do with the light output. Many shoppers wrongly think that the higher the Kelvin reading, the brighter the LED bulb. In the case of LED bulbs, Kelvin is one of the most common cited specifications. Does a higher colour temperature bulb produce more light?.However, since LED bulbs are far more energy efficient than its predecessors, you need to consider lumens - not watts-when measuring the total output of a specific bulb. When the former increases, the latter goes up too. In the case of incandescent bulbs, there’s a direct correlation between wattage and brightness. They may also be a better option for home offices or garage. That said, for task lighting you may consider cool white LED bulbs. For most indoor lighting applications, a colour temperature in the range of 2700K to 3600K is recommended. Warm light, by contrast, is frequently used in living spaces as it is more relaxing. Since cool light produces higher contrast compared to warm light, it is more suitable for visual tasks. On the other hand, lower colour temperatures (2700k to 3000k) are regarded as warm. Higher Kelvin temperatures (3600K to 5000K) are considered cool. Kelvin is used for denoting the colour temperature of a bulb or any other light source. You should look for an LED bulb with roughly 450 lumens if you want to replace a 40 watt incandescent bulb.
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