Contractors & Distributors Sign In Here

Blog Post

White Light – What is It | Is a White Light Standard on Its Way

White Light – What is It?

Ask someone what is white light and they’re challenged to provide an answer. No reason to feel alone for there is No clear definition. Organizations including IES, IALD, CIE, IEEE, ANSI and NEMA have not agreed upon a standard with no near term agreement in sight. This lack of consensus creates problems for engineers, architects, designer and consumers who benefit from a clear definition that supports uniformity.

White Light – Standards?

Current standards for defining white light are subjective and vary based upon the light source and even culture. We see color as reflected light where variations result from noticeable distortions. The distortions are the result of the human eye perception of a single color that is actually a vast array of light wavelengths and hues.

Measuring Light

Although there is no one specific number in degrees Kelvin that corresponds to white light there is a general consensus in respect to a temperature range. A general rule is white light ranges from 3500K to 4100K which is the center point for commercial applications. LED lighting is capable of being fine-tuned allowing the tightening of this Correlated Color Temperature (CCT) range.

Describing Color

Hue, Value and Saturation are used to describe color. Hue refers to the pure spectrum colors i.e. red, blue, green, etc. Value is the relative lightness or darkness of a color. Darker values are shades and lighter values are tints. Adding black to create a darker shade or white to tint a base color modifies its color value. Saturation refers to color depth or purity. The HSV scale is derived by combining hue, value and saturation values. Lighting conditions shift hue, alter value, and distort saturation.

Light Applications

As LED lighting continues to advance the range of applications are endless. Light can be controlled to match up with circadian rhythms modifying behavioral changes such as feeling sleepy or mood altering perceptions. White light alterations enhance visibility and provide a range of contrasting values adding visual texture and definition.

White Light Standard in Time

Eventually a standard will be agreed upon that one day defines white light. Once available industry professionals and consumers will have a clear reference for a variety of light applications. With clarity comes improved understanding of how light will continue to be integrated into our illuminated world.

Related Posts

Mercury (Hg)
Mercury – Uses and Effects. Choose mercury free batteries and LED lights from EcoCentricNow.com

Mercury – Uses and Effects If you’re old enough you may remember the days when

Interior LED Lighting
Bravoled LED Lighting. Interior and Exterior Luminaires of Exceptional Quality and Performance

Bravoled LED Lighting – Interior and Exterior Illumination Bravoled LED lighting is changing the commercial,

LED Light Manufacturer Bravoled
How to Select Your LED Light Manufacturer and Supplier

How to Select Your LED Light Manufacturer LED light manufacturer’s are not equal. There are

SSL Technology
SSL Technology Stories – Fact or Fiction Industry News

SSL Technology Stories – Fact or Fiction Industry News SSL technology advancements are constantly marketed to promote

LED Lighting Popularity
LED Lighting Popularity Continues to Grow

LED Lighting Popularity LED lighting popularity is a trend destined to see wider acceptance in