Quote Originally Posted by cture
Thank you all for your thread guys! I have found this lamp and starting to use it!
1 lamp per 1 meter ^2 This will provide a highland uv b or equatorial UV b
Ðадикал-Фо???о - Увели??енное изоб??ажение
Ðадикал-Фо???о - Увели??енное изоб??ажение
Few questions (I have many).

According to technical data this lamp is 260nm to 320nm, but according to the spectograph it peaks at like 305nm and has a much broader range. How can I find out what all these lamps really emit (nm, range and mw/cm2)?
It would be usefull to know to get the right full spectrum and to not destroy the plants.

Also I wonder how much of sunlight is UV(-B) in desert and high altitude areas and how that changes throughout time.
Preferably in an exceptional good year (like you have in wine).
Typically "98.7% of the ultraviolet radiation that reaches the Earth's surface is UVA".
How much UV do high THC areas get and how much of it is A or B? It would be nice to have a kind of light schedule per region and it would make sense to imitate that, because that is what the plant is adepted to and what should prevent burning.

It seems like you only need little UV-B and I wonder if there would be UV leds (at a normal price) that have enough of it.

Finally, sand reflects 25% of UV and snow 85%. How much would the foil in a growroom reflect?

I did find this in my search for answers:TEMIS -- Clear sky UV index and ozone at a location
Now I still don't know anything, but it was fun playing with.
Imagine growing your plants there; 100% guaranteed you will get high.