This is a metric that is developed by ChromaChecker that corresponds to other E-Factors in the ChromaChecker System.

How we are calculating Lighting E-Factor

The calculation is based on virtual sample lists in 4 categories

• CMYK — (typical printing process on coated paper)
• Spot — Typical Spot Color Colorants 
• Fluo — set of fluorescent samples (specific task only)
• Wide-gamut — ECG Printing process

The reference dataset is D50 - like most Printing Technology and Color Management.

Low-budget LED"natural white" light source		High-Quality Just Normalicht LED (D50)

Comparison E-Factor

On the same principle, two light sources can be compared in between.