Guide to Watt, Lumen & Kelvin 

If you are thinking about buying an LED lamp, there are a number of features that can be important to keep in mind. These include power (Watt), luminous flux (Lumen) and color temperature (Kelvin). These can be difficult to understand and explain the difference. We have therefore compiled a guide that describes the meanings and functions of the various properties. 

WATT (W)

Watt is the unit in which the power of the lamp is measured. A lamp with many watts usually needs a lot of energy to shine, which distinguishes them from lamps with fewer watts that are energy efficient and use less energy. In practice, a lamp with many watts usually shines brighter than those with fewer watts. however, there are several different properties that affect how a lamp shines and it is therefore not recommended that you only look at Watt when making a purchase. Over the years, LED lamps have become increasingly popular as an LED lamp with 10 watts can provide the same light as a traditional light bulb with as much as 60 watts. 

Lumen (LM)

The lumen is the unit in which the luminous flux of the lamp is measured. a lamp with many lumens can produce more lumens per watt, which means that the lamp has a higher brightness. In the past, it was common to talk about Watt when discussing the brightness of a lamp. In recent times, however, it has been more and more about Lumen. In the picture below you can see approximately how different amounts of Lumen in a lamp. 

KELVIN (K)

When Kelvin is the unit in which the color temperature of the lamp is measured. It can be said that Kelvin affects which color an LED lamp shines with for color, the fewer Kelvin the yellower the lamp usually shines. If you are thinking of buying a light bulb, it is important to think about how different color temperatures fit into different environments. A lamp that glows white may, for example, perhaps be best suited outdoors, while a yellower light may be better suited indoors, depending on how you want it. Below you can see an example of how different levels of Kelvin (K) can affect what color the light bulb radiates.

That said, if you are considering buying an LED Lamp, there are a number of features that can be important to keep in mind, be sure to take them all into account!