UVtech SLEEP 1 100% Light Red Glasses, Blue Filter and Green Filter, Computer Glasses Gaming Goggles PC UV Blocking Anti Women Men

Only red glasses block 100% of blue and green light, reducing melatonin production. Clear lenses do not block the blue and green light spectrum SLEEP-1 glasses that can be worn 1.5 hours before bedtime to block blue light and optimise the circadian rhythm (adjusting your biological rhythm). They can block up to 100% of harmful blue and green light. They block a spectrum with a wavelength of 380 to 565 nm. Certification: CE EN166 / ANSI Z87.1 The colour of the glasses is bright red, suitable for beginners. For advanced users, dark red lenses are more suitable. The glasses block blue and green light from all sides. Unlike "stylish" blue light glasses, they prevent blue light from entering the eye from the side. The filtering capacity of the glasses was measured with a professional spectroscope. The pictures show the measurement protocol.