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Which is the most suitable light for reading? White Light vs. Yellow Light

Jan 16, 2022

Which is the most suitable light for reading? White Light vs. Yellow Light

As a specific type of light can exhaust your eyes faster and influence your focus and mood, what can be the best suitable choice of light for reading & relaxing. 


For night reading, some experts recommend using a yellow color light. It is less than 3000 K on the color temperature scale. Let's dig in deep!


The Color Temperature

The CCT (correlated color temperature) scale shows the intensity of light color. This value can determine how much blue light is in the light we are exposed to.


The scale ranges from the warmest light of 1,800K to the coldest one, with the highest amount of blue light, which reaches 6,500K. There are three kinds of light with different color temperatures.


  • The warm light of 2,500 to 3,000K will help you relax while reading and rest better.
  • The natural light of 4,900 to 6,500 K is the best solution for eyes that allows comfortable work.
  • The cold light of 6,500 K offers an excellent level of brightness and improves overall attention.

The cold blue light which has the highest CCT is the best option during working hours when one wants to be awake & alert. Whereas one can choose warm lights to relax and read at night without interrupting sleep cycles. 


Differences between Warm and Cool Light

Based on a study, more people are comfortable with warm light while reading, but they have concerns over the brightness level. 

Here is a list of different types of lights we are exposed to during the day. 

white lights & blue lights are considered in the same category.


Natural light

With natural sunlight, the human body stimulates Vitamin D & serotonin, making the light highly beneficial for health. It also boosts your mood, strengthens bones & improves your vision. 


Yellow light

The warm light is more relaxing for your eyes and offers a pleasing sense of being in a cozy, friendly place. It is an excellent option for reading and finishing tasks that require mental stability.


It is recommended to be installed in places like living room and bedroom where you often relax. Ironically yellow light is considered for calmness as it connects the light to sunset and perceives it as nighttime.


White light

The commercial areas and the workspaces prefer white lights as they will help one to be focused. It is considered cold, intense & direct. 

This type of light is considered cold, intense, and direct. 


White lights with intermediate CCTs are recommended and can be installed especially in kitchen bathroom & office spaces. Higher CCT can make one feel tired and irritated.


Blue light

Blue light can be harmful and can cause permanent eye damage due to prolonged exposure. The contemporary world uses blue light much too often in cell phones, TVs, and monitors which are unavoidable. 


Exposure to cold white or blue light for one hour at night decreases melatonin production. This in return delays sleeping time up to three hours.


Lumicharge all-in LED desk lamp has white, blue & yellow light capabilities, suitable for every need. By controlling its brightness levels one can make it perfectly suitable for their eyes.