The soft red glow will allow you to see in the dark without disrupting your night vision or melatonin. These are meant to use in hallways and bathrooms. You can also use them in bedrooms. They are not meant to be used to illuminate large rooms.
NOTE
Please allow 10-15 minutes in the dark before judging the brightness of the nightlights. If your eyes are not dark adapted, they will look very dim.
Once your eyes have switched into nighttime mode, they will be the perfect level for illuminating a bathroom or hallway in the middle of the night.
You can wake up in the middle of the night and navigate to the restroom and back without breaking your night vision or disrupting melatonin production!