Health Concerns with Grow Lights?

[DesignerofBeauty]

Originally Posted by naoki

UV is emitted from some fluorescent bulbs, but not a lot. https://en.wikipedia.org/wiki/Fluore...mps_and_health

White LEDs don't emit UV, but majority of white LEDs emit lots of blue light (especially the cooler white ones). Some people are concerned about the effects of blue light. Blue light influences many aspects of health because circadian rhythm can be influenced by blue light. So it might be better to avoid it at night if you are sensitive.

That's another question I had. Most of the LED lights seem to have blue/red in them. Can I use white LED lights to grow my orchids?

---------- Post added at 05:24 PM ---------- Previous post was at 05:20 PM ----------

Originally Posted by u bada

Yeah, lighting would certainly help in that case... the fact the fittonia isn't burning in that spot is telling, didn't notice till looking at pics on my cp just now... the catts and the den would need the most lighting for sure... what catts are they? some can handle less light than others.

I have an "Otaara Hwa Yuan Bay 'She Shu' AM/OROC" a
"Lc.Tropical Chip 'Andromeda'" and a "Slc. Crystelle Smith 'Aileen' AM/AOS".

Also, that fittonia sure is temperamental! It loves very very humid conditions. It also gets wilted even when the soil is very wet.