The App works with the same technique as photographers or the military. A soft red eyefriendly light at the beginning.

Highlights:
- eyefriendly Red at beginning (military)
- Stand-by of the Iphone is disabled
- infinitely adjustable brightness
- Toggle-Button to switch white light

You can spend hours at night reading without headaches. If necessary, the brightness can be adjusted or changed for emergencies on a bright, white light. The app is multi-tasking.