We provide both the CRI Re and the more accurate TM-30 fidelity or Rf score for color rendering.
In general, the closer to 100 these numbers are, the better things will look under a given light.
Due to space, these are just averages, and more details on each light’s color rendering qualities can be viewed on its details page.
What is CRI Re?
The oldest and most widely adopted color rendering metric is the color rendering index or CRI.
This essentially compares a reference light (such as sunlight) to the light being tested. A score of 100 indicates that the test source reflects colors identically to the reference light.
CRI leaves a LOT to be desired and has since become obsolete with the recent development of the TM-30 standard, however, since everyone is still using it, we’ve decided to include it in our measurements.

You may have noticed however that we use CRI “Re”, which includes saturated colors such as R9 or deep red. This is a much harder score to rank high in. When companies state their “CRI” score, they’re referring to CRI Ra, which excludes these colors.
What is TM-30 Rf?
The TM-30 standard includes many different color rendering metrics, the main one of which is the Fidelity score or Rf.
While CRI Re uses only 14 colors, Rf uses 99!

On our detail pages you will find full TM-30 reports for each light as well as the other TM-30 details like saturation and color shifting.