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thats ok, they claim to have UVB ( 280-315nm ) but got peak at 390nm which is UVA. so there is only little harm. never the less protect yourself!
UVA rays penetrate deep into the dermis, the skin's thickest layer. Unprotected exposure can lead to premature skin aging and wrinkling (photoaging), and suppression of the immune system. UVB rays will usually burn the superficial layers of your skin. It plays a key role in the development of skin cancer.
I already have both of these conditions ( aging skin I'm 77 and have skin cancer and I had a vasectomy ) Whats left . :rofl:
 
A very generous and good looking individual ( I had to say that :rofl: ) gave me mine . :thumbsup:
Oh my, respect to that individual cause those plants are by far the prettiest I've seen...
Just in awe of the color of them leaves and bud, those ALF#5 that FullDuplex is working on are also becoming a dead sexy plant... always go back and look at them... thats my canna porn!!!
Really love those deep dark colors.
 
UVA rays penetrate deep into the dermis, the skin's thickest layer. Unprotected exposure can lead to premature skin aging and wrinkling (photoaging), and suppression of the immune system. UVB rays will usually burn the superficial layers of your skin. It plays a key role in the development of skin cancer.
I already have both of these conditions ( aging skin I'm 77 and have skin cancer and I had a vasectomy ) Whats left . :rofl:

yeah i know that UVA goes "deeper" but the thing is that no LED produced up to now is able to produce enough energy to keep up with a tube. Even if they had 20 UV LED's you would need to go very close that the intensity gets high enough.

btw crazy that u r 77 and fight against skin cancer, good luck, kick it with natures medicine!
 
yeah i know that UVA goes "deeper" but the thing is that no LED produced up to now is able to produce enough energy to keep up with a tube. Even if they had 20 UV LED's you would need to go very close that the intensity gets high enough.

btw crazy that u r 77 and fight against skin cancer, good luck, kick it with natures medicine!
The cancer's not that serious yet . When a liason appears I just go and have it cut out and I'm good to go again .
 
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