Illuminance settings

can some point me to the a guide or a FAQ for the illuminance Caparison list

!=
<

and the rest

Check this out:

https://www.engineeringtoolbox.com/light-level-rooms-d_708.html

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Are you asking about the meaning of those symbols?

!= means “not equal to”
< means “less than”

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Yes

Can you tell what the rest are please

They are the standard "C" program operators ( or comparisons)

< less than
= equal to
> greater than

From there they combine...

so <= means less than or equal to

etc

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Thanks guys

Those comparison symbols are not specific to illuminance btw. They’re also used for any numerical attribute like temperature, wattage, etc.

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