On the packaging of flashlights and torches to be used as headlamps, terms such as lux, candela and lumen are often mentioned in the description. But what exactly do they mean? And why don’t watts…
Candela vs Lux vs Lumens
What's the Difference Between Lumen, Candela and Lux?
Understanding Lumen, Lux, Candela and Light color (White, Red, Green, Blue, IR, UV, High CRI), by Siherenusa
Sigma Safety Lumens and Lux and Candela, oh my!
Conversion – PPFD to Foot-candles – Hort Americas
Watts to Lumens, Lumens to Lux
Understanding Lumen, Lux, Candela and Light color (White, Red, Green, Blue, IR, UV, High CRI), by Siherenusa
Luminous intensity - Wikipedia
Sensing by Electricity
Helpful guide : r/flashlight
Several Units About the Brightness of the Torches: Lumens, Candela and Lux
Common terms in Dialux Lighting Calculation
Petzl Duo series hiking torches: power, reliability and
