HomeAbout usService
Inquiry Blog Contact us


FAQS
Delivery time
 Usually, our delivery time is 5 to 8 days after order confirmed


Payment methods
 Payment by wire transfers(T/T) ,Western Union and L/C would be appreciated


Customizing a lamp
Our products can be made subject to CE, UL, TUV,PSE,SAA standard to meet the electrical requirements of many countries.


Warranty
 All of products,we provide 3 years warranty,at least use 30,000 Hours


What is Class A or Human Centric Lighting?

Light is a powerful, natural, medium that can be used to influence well-being and human behavior. LED technology advancements are using scientific research, along with human reaction, to hone new color points that result in positive experiences.
What is Class A or Human Centric Lighting?
Created by Behavioral Scientists at the Lighting Research Center (LRC), with Bridgelux and other Alliance for Solid-State Lighting Illumination Systems and Technologies (ASSIST) members, Class A lighting redefines high quality light. Class A was developed from worldwide tests on sample groups of consumers and lighting professionals to determine the most preferred white points. The end product is a unique set of white points with a balance of CRIs for good color rendering and and Gamut Area Indices to render color saturation.
Class A is defined by its overall appeal, its brightness and how natural it feels to the human eye. Colors are vivid and whites are at their whitest.
 
What is Gamut Area Index or GAI?
Bridgelux Decor Lighting for Galleries
Bridgelux Décor Series Class A Chip-on-Board (CoB) LED arrays feature a new approach to color targeting that addresses the way the human eye perceives color.
Gamut Area Index (GAI) is a metric that, when combined with CRI, more accurately describes the overall effect of light than just CRI measurement. CRI only provides a comparative score for color rendering consitency but does not capture color saturation.  The human eye perceives both attributes in viewing a color.  GAI measures the saturation or dominance of a color and, combined with CRI, is a more accurate representation of how a person will perceive color.
The internationally recognized LRC (make this a hyperlink to LRC), with whom Bridgelux collaborates, has carried out years of research on how the human eye perceives light.  Optimized color points, defined by GAI values, are then developed based on viewer’s preference. The human eye perceives light as the combined effect of hue, saturation and brightness. All of these factors must be considered to accurately characterize light.
Gamut Area Index plots the relative values of each of the CRI reference colors on the color space.  This captures additional information about how the source renders color saturation.  In the example below, Class A is compared to a halogen light source.  The larger area of Class A (on the right) indicates the ability of Class A to render a wider range of color and saturation.