There are two “DIM” settings, one for DAY and one for NIGHT. After about 30 seconds of no touch on the screen, the screen will dim to either of these two settings. Normally, when the screen is touched, it goes to full brightness, As of version 4.7.2, a “NIGHT BRIGHT” level setting was added, If its night time, instead of going to full brightness, the screen will go to the NIGHT BRIGHT level.
There are two select-able ways of determining DAY and NITE: Sunrise/sunset (AUTO) or by a schedule (Specific time).
Sunrise/Sunset: When AUTO is selected, it uses the date being reported by the real time clock to compute estimated sunrise / sunset times for that date. For example, If the date is Feb 15th, the sunrise (SR) will be approximately 7:30 am and sundown (SD) will be approximately 6:07 pm. It then uses the current time to determine if it should dim DAY or NIGHT. If the time is between 15 minutes before SR and 60 minutes after SD , it uses the DAY dim setting. Otherwise it uses the NIGHT dim setting.
Schedule: – Specific Time: This is generally the more popular way. Specific times are set for DAY and NITE.
DIM setting ranges from 5 to 100. These are not linear, i.e. 10 isn’t twice as bright as 5. Also, every display responds differently to this setting. A dark room night DIM setting on one display may be 6, but on another display it may be 14. Change the setting by clicking on it, It increments up to “100”, then the next increment step will be “5”. Click SAVE to save your settings.