Night High V40 Denji Kobo !free! Link

Engineers at Denji Kobo discovered that standard white/blue LEDs cause pupil constriction, ruining night vision. The 620nm red light preserves your rod cells in low-light conditions. Whether you are changing coils at a campsite or checking your cotton in a dark car, the Night High V40 ensures you do not go blind.

flips the screen so the text is white and the background is black, which reduces glare during late-night reading. How to turn it on: middle of the screen while reading to open the menu. (Settings) at the top. Reading Settings Check the box next to 💡 Using ComfortLight PRO Most modern Kobo eReaders include ComfortLight PRO night high v40 denji kobo