IGEL Linux v5 Universal Desktop Converter 2 (UDC2) UDC2 How-Tos Setting up UDC2 on Mobile Devices Current: Display Brightness PDF Download PDF Download page Display Brightness. Current page All pages Display Brightness In order to preserve the battery you want to reduce the display brightness.Respective Tray Icon:Tray Icon NameIconWhere to configureNotebook BATMenu path: Setup > System > Power Options > BatteryRight-click the battery symbol in the system tray.The context menu opens.Click the slider of the brightness display to reduce the Display Brightness. ×