> Newer, commercially available GUV technologies are even safer for skin and do not irritate the eyes. If this is using UV, how does it avoid sunburning the re

> Newer, commercially available GUV technologies are even safer for skin and do not irritate the eyes. If this is using UV, how does it avoid sunburning the retina if looked at? Sunburn is pretty bad as people can attest to. When I did experiments in uni, lining up emitter tubes in front of spectrometers made nice vertical tans on my nose...