Blue Light Filter - Night Mode Do you experience eye strain when reading on your phone at night? Do you have trouble falling asleep after staring at your phone screen for a long time? The reason for this is blue light. The blue light emitted from your phone and tablet screen is a visible light spectrum (380 to 550 nm) for circadian regulation. According to scientific studies, exposure to blue light poses a serious threat to retinal nerves and prevents the secretion of melatonin. Melatonin is a hormone that affects circadian rhythms. Reducing blue light has been proven to have a significant effect on improving sleep. Blue light filter is used to reduce blue light by adjusting the screen to a natural color. Changing your screen to night mode can reduce your eye strain, and your eyes will feel easier to read during the night. Also, the blue light filter protects your eyes and helps you sleep comfortably. Features: ● Blue light can be reduced ● Filter intensity can be adjusted ● Power can be saved ● Very easy to use