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londons_explore
on May 16, 2019
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LED light can damage eyes, French health authority...
A lumen is
already
a measure of perceived brightness.
You can have a 10 watt UV light, but you can't have a 10 lumen UV light for example.
knodi123
on May 17, 2019
[–]
oops, I meant radiant flux instead of lumens.
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You can have a 10 watt UV light, but you can't have a 10 lumen UV light for example.