There are 6 versions of the 4-bit Nixie tube clock. The QS30 model and the QS27 model have two types that support WIFI and do not support WIFI timing. Both support display time, date and temperature. RGB LED backlight, there are 8 display modes, you can adjust the three colors of red, green and blue respectively, and a variety of combinations can be selected. You can set the display time of the clock by yourself, and it can display up to 12 hours, after it will automatically turn off, and it has a power-down memory. The clock is also designed with a stopwatch function and anti-poisoning function, which can effectively prolong the service life. Powered by a Type-c interface, and equipped with infrared remote control, it can remotely switch clock modes and other settings.