What context can I use each word in?
Learn when and how to use these words with these examples!
illuminance
Example
The illuminance in this room is too low for reading. [illuminance: noun]
Example
The illuminance level needs to be measured before installing the new lighting system. [illuminance: noun]
Example
The illuminance of the sun was too bright for me to look directly at it. [illuminance: noun]
brightness
Example
The brightness of the LED light can be adjusted using the remote control. [brightness: noun]
Example
The screen brightness on my phone is too high, it hurts my eyes. [brightness: noun]
Example
The brightness of the sky changed as the sun began to set. [brightness: noun]
Good things to know
Which word is more common?
Brightness is more commonly used than illuminance in everyday language, as it has a broader range of meanings and can be used in various contexts.
Whatโs the difference in the tone of formality between illuminance and brightness?
Illuminance is a more technical and formal term, typically used in scientific or engineering contexts, while brightness is more versatile and can be used in both formal and informal settings.
