Lux is a third-party app that allows you to easily calibrate your phone’s brightness sensor, saving you battery power and reducing eye strain if your phone is normally too bright in dark roomsFEATURES★
+ Stable, custom auto brightness with root plug-in support.
+ Use your ambient light sensor or camera(s) to read in ambient light.
+ Subzero brightness for night viewing.
+ Select between Auto, Day, Night, Car and Cinema light profiles
+ Automatic night mode
+ Astronomer mode
Varies with device