Not only do these cool lights produce artificial light at night, but their higher concentration of blue light can throw off your body’s circadian rhythms.Ī recent article in Live Science finds that “exposure to blue light suppresses the production of melatonin more than any other type of light. Cool CLF and LED bulbs have been shown to negatively affect sleeping patterns, similarly to the blue light emitted by our cell phones and computers. While the decision on which type of lighting is best for your home is mostly a question of individual style preference, there are a few health considerations that should be taken into account. It comes as no surprise that people who live in colder climates tend to prefer warm lights, while homeowners in warmer climates tend to favor cooler lighting options. Cool lighting tends to offer a more modern and “clean” look for different areas of your home while warmer, yellow lights offer a softer and more conventional “glow” for your home. This is why cool or white LED bulbs are rated as having a higher lumen output than their warm LED counterparts.Ĭolor temperatures from 1,000 - 10,000 K CCT rating So what exactly does this mean for the lights we use in our homes? In practical terms, cool lighting will contain more “blue light” and will appear slightly brighter to the eye. Warm, yellow lighting has a CCT rating of between 2,400 and 2,700 K, while cooler, white LED lighting has a rating of 4,000 K. CCT is measured in kelvins (K) on a 1,000 K to 10,000 K scale. Correlated Color Temperature (CCT) in different lighting fixtures is used as a description of the color of the light emanating from the light fixture. The white color refers to cool lighting, while warm lighting is characterized by a softer yellow hue. When you turn on a light in your home, it probably emits either a white or yellowish glow. Differences Between Warm and Cool Lighting This short article explores the differences between what is known as “warm” and “cool” lighting to help homeowners pick the best lighting option for different parts of their home. Today, many smart LED lighting options allow homeowners to change the hues of the lights in their home with programs like the Google Home App's Color Picker". Most CFL lights offer what is known as cool light, or white light, while LED lighting can be found in both cool and warm (yellow) light. Not only can you choose between dozens of different energy efficient bulbs, you can also opt for different colors of lighting as well. Fast forward to today and a trip through the lighting department of your local hardware store most likely offers you hundreds of different options - and infinitely more if you look online. Before the advent of CFL and LED lights, there were limited options for energy-saving lighting, and almost all incandescent bulbs give off that same, warm, yellowish glow of light. Just a couple of decades ago, choosing the right lighting for your home was as simple as heading to the local hardware store and purchasing the right size bulb for your lamp or socket. Pictures of each temperature on the color scale.Differences Between Warm and Cool Lighting.
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