Nowadays, light quality is a key differentiator in lighting. In general, quality of light refers to the visual aspects of light and its dependencies on and interaction with people and the environment. LEDification gives us endless possibilities to differentiate in spatial, spectral, and temporal light quality. It forces us to revise our traditional way of evaluating light quality. Philips Lighting continuously optimizes its products by bringing together in-depth understanding of user needs, lighting application knowledge, and scientific insights. We have created the EyeComfort trademark based on the following selected parameters: Flicker, Stroboscopic effect, Photobiological safety, Glare, Dimming, Tunable, Color rendering, and Audible noise. Our LED lamps and LED luminaires product portfolio is evaluated using these parameters. This white paper explains these parameters and, accordingly the importance of optimizing lighting. https://www.philips.co.uk/c-dam/b2c/en_GB/marketing-catalog/lighting/led-lights/eye-comfort/Philips_EyeComfort_whitepaper.pdf