QS18-12NixieTubeClockIntructions Http://www.nixieclock.org Designer:YanZeyuan.China. Email:yanzeyuan@163.com Website:www.nixieclock.org 5 / 8Timeformat12H/24H Inthedisplaytimemode,pressOKbuttoncanswitchtimeformatrepeatedly.■ Time format only in display time mode, in setup time mode, please according toset time 24H format.■ This option stored in the clock and can not lost when power off.DateformatYY-MM-DD/MM-DD-YY/DD-MM-YYInthedisplaydatemode,pressFUNCbuttoncanswitchdateformatrepeatedly.■ This option stored in the clock and can not lost when power off.Temperatureunit ℃/℉ In the display temperature mode, press FUNC button can switch temperature unitrepeatedly.■ This option stored in the clock and can not lost when power off.BacklightmodeswitchInthedisplaytimemode,pressLIGHT buttoncanturnonorturnoffbacklightorletthembreath.Indisplaytimemode,pressNUM0-NUM9buttoncanturnonthebacklightdirectly,andsetthecolor.NUM0:backlightwillchangethecoloraccordingthedayoftheweek.Monday:red.Tuesday:yellow.Wednesday:green.Thursday:cyan.Friday:blue.Saterday:purple.Sunday:white.NUM1: redcolorbreath. NUM2: yellowcolorbreath. NUM3: greencolorbreath. NUM4: cyancolorbreath. NUM5: bluecolorbreath. NUM6: purplecolorbreath. NUM7: whitecolorbreath. NUM8: autochangecolorbreath.NUM9: autochangecolorwithalwayslighting. AdjustbacklightbrightnessIn the display time mode, press LEFT button will reduce light brightness, press RIGHTincreaselightbrightness.■ There’re five degree of lighting.