So you're at the point that we all come to at one point or another: the light bulb in your living room has died. Again. You need to replace it, but you don't really know anything about how the light bulb, well, lights. 

Well, in that case, we're here to help! The color of a light is called the light's Color Temperature, and is measured in Kelvin (K). Check our info graphic below!

Kelvin Color Temperature

Basically, if you took a block of steel and heated it steadily, it would start to glow from orange to yellow and so on until it became a bright, ultra-hot blue. The temperature of this block of steel is measured in Kelvin, one of the more scientific measurements used alongside Celsius and Fahrenheit to measure heat. Kelvin is found by adding  273 degrees onto the Celsius measurement for an object. 

Going back to the block of steel, if you measured the temperature given off by the metal and matched it to the color that the metal was glowing, you would get the Color Temperature of the light given off by the steel, ranging from that low orange level all the way up to ultra-hot blue. Steel is really just an example of something to that changes colors when heated--Color Temperature is a constant based on how hot the light is and therefore what color it is!

Lights measured around the 2000K to 3000K is considered “warm light”, from 3100K to 4500K “neutral”, and 4600K to 6500K “cool” or “bright white”. LED lights tend to fall in the 2700K range, offering a warm and cozy light.

Good for the Enviroment

LED lights produce less waste because of their longer lifespans and lower energy consumption compared to other widely used lighting options. With the development of new technology, scientists are finding ways to create biodegradable LED lights that produce the same results, creating a more environmental friendly product. 

Price and Life Span Comparisons
LED CFL Incandescent
Cost per Bulb $35.95 $3.95 $1.25
Bulbs needed for 50k hours of use 1 5 42
Cost of Electricity $50 $70 $300
Total Cost per 50K hours $85.75 $89.75 $352.5
Life Span 50,000 Hours 10,000 Hours 1,200 Hours

So the next time you need to replace a light bulb, go with LED to save money and still get that great natural light!

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