color rendering index

measure of the ability of a light source to reproduce the colors in comparison with an ideal or natural light source

Discussed in 2 episodes Wikidata (Q27575) →

Episodes

#5723: Task Lighting Spec Sheets: Wattage, CRI, Kelvin & Dimming

What the box tells you, what it hides, and the four numbers that actually predict how a task lamp behaves.

Main topic Oct 4
#5741: The Bulb That Lit the 20th Century

From Edison's carbon filament to the blue LED that unlocked white light — how we got from 1 lumen per watt to 150.

Oct 6