The Bravia 5’s main bid to win hearts and wallets comes with its combination of Mini LED lighting, local dimming (over what we count to be 240 separately controlled zones), Sony’s XR processor, and a ...

Red light range: Pay attention to the wavelengthsred light typically falls between 630660 nanometers, while near-infrared is usually around 830 nanometers, says Dr. Henry. Look for masks that fall ...