$ 19.99
UV light begins at 400 nanometers and above (smaller wavelength number = faster wavelength and more dangerous). Blue light is very intense and just inside our visible spectrum. This chart shows how LED, CFL & Fluorescent sources deliver a heavy dose of blue light.
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This chart illustrates how blue light rich LED light sources are nearly identical to our Circadian Rhythm sensitivity. This means that excess blue light during the evening hours can make it difficult to fall asleep, and in some cases have a very negative affect on sleep cycles.
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$ 8.99
Carhartt Billings Safety Glasses with Sandstone Bronze Lenses: Workday to shooting range, these wraparound safety glasses provide lightweight coverage for your eyes. The rugged build features a rubber nose piece for day-long comfort. Lightweight, frameless design with the Carhartt logo on the tempo. Polycarbonate temples come...
$ 15.99
Carhartt Braswell Anti-Fog Half Frame Ratcheting Temple Safety Bi-Focal Readers: Available in a lightweight polycarbonate black half-frame with ratcheting temples. This allows you to fully adjust or customize the tilt (also known as the pentasomic angle) of the lenses. This is especially helpful in a variety...
$ 13.99
Carhartt Braswell Half-frame Ratcheting Anti-Fog Safety Glasses - Lens Options: Available in a lightweight polycarbonate black half-frame with ratcheting temples. This allows you to fully adjust or customize the tilt (also known as the pentasomic angle) of the lenses. This is especially helpful in a...