UV flashlights are considered to be weak sources of UV compared with direct sunlight. UV wavelengths of 320nm and below are known to be harmful and the wavelengths to really watch out for. Black lights tend to emit longer, much less damaging wavelength light somewhere in the range of 360nm to 405nm, the danger posed by them is considered minimal/non-existent depending upon who you talk to. The obvious question here relates to what ‘minimal’ refers to. Due to there being the potential, however small, of damage to eyes from UVA and UVB wavelengths we recommend going with the safest option of wearing a quality pair of 99-100% UV-protective glasses.
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The Berea Hardwoods Co, Inc.
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The Berea Hardwoods Co, Inc.