Night-vision technology can help minimize your odds of getting off course or missing a hidden aid-to-navigation post or ...
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Infrared vs red light therapy: what’s the difference and which should you be using for your skin?“633 nm is the gold standard for red light." "Infrared light therapy [instead on the infrared light spectrum] operates in the longer wavelength range of 800 to 1200 nm,” he continues, with 830 ...
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