3 ms·
As I mentioned in another comment[1], there is in this paper a 500 lux experiment where LED were found harmful. [1] https://news.ycombinator.com/item?id=133314
by vmarsy 10y ago
As I mentioned in another comment[1], there is in this paper a 500 lux experiment where LED were found harmful.
[1] https://news.ycombinator.com/item?id=13331492 https://news.ycombinator.com/item?id=13331492