We want to accommodate all settings and individual preferences regarding aesthetics. Different activities may require different lens colours depending on the amount of blue light protection or colour visibility that is needed.Natural blue light is present during daytime, but it decreases rapidly at sunset before it disappears so choosing the most suitable glasses for the right time matters. Blocking all artificial blue light during daytime is not necessary as blue light is naturally present from the sun. Our Clear and Yellow glasses are therefore well suited for daytime use, as they allow some of the blue light through while filtering out the most harmful artificial light, protecting your eyes, circadian rhythm and health. Our Orange and Red glasses have a stronger blue light filter compared to the Clear and Yellow glasses, as they effectively filter out 100% of all blue light. For more optimal sleep and health, our Orange and Red glasses are therefore the best choice for blocking blue light at night, as the only blue light present during this time is the artificial light from our digital devices, screens and LEDs.We don’t recommend using the Orange and Red glasses during the daytime, as they are intended to be worn after dark or at night-time only for improved circadian rhythm and sleep. We also don’t recommend using these glasses when driving.Some people don't want to or can’t wear Red or Orange glasses after dark due to different circumstances. In this case, it's still beneficial to wear the Clear or Yellow glasses for some blue light protection and health benefits.