For example, we measure Energy Transmission Measurements:

Spectrum Specifications: we test energy transmission values in three spectrums:
The light sources used for each spectrum have a peak response at the following wavelengths:
UV:               365nm            
Visible:          Full weighted spectrum: 400 – 700 nm
Infrared:         950nm
 

UV ↓ Lower UV values = Better fading protection

Visible Light  ↑ Higher values are typically better

SHGC ↓ Lower SHGC values = better energy efficiency