The clock face lighting up with the alarm is an option that can help some people wake up.
Alarm Light Function
While this feature be useful for many users to up easier, it isn't necessary to have it turned on. Getting the clock face to light up when the alarm sounds is completely optional and can be turned on or off by the user.
The alarm light setup is part of the alarm settings. To learn more:
Click here to read about alarm settings on a Mudita Bell
Click here to read about alarm settings on a Mudita Bell 2