Feature:1. Nixie Tube Clock Module: This module is designed to bring a touch of vintage decor to any space, adding a unique charm that is both nostalgic and modern, making it a beautiful addition to your home decor2. Accurate Timing: Equipped with high performance clock chip, this module ensures a high accuracy, with an annual error rate of less than one minute, you can rely on it to keep you punctual and on schedule3. Easy Setting: Setting time is a breeze, thanks to its intuitive and user friendly design. With just a single click of the Set key and adjustments using the Up and Down keys, easily set the time to your preference4. Multiple Functions: This clock module offers flexibility and convenience with its support for 12 and 24 hour display switching. And with a sleep mode function, you can easily set it to dim the lights or turn off5. Versatile Use: The Nixie clock circuit board supports multiple color switching, sleep mode, refresh time setting, back color setting and other functions, adding diversity to your creativity and suitable for all agesSpecification:Item Type: Digital Tube Clock ModuleInput Voltage: 5V 2ABattery: 1 x CR927 Battery (not included)Function:TimeBacklight Color (multiple color switching)12/24 Hour ModuleSleep Module (22:00-07:59 No Display, 08:00-21:59 Display) can be set to turn on or offRefresh Time Setting (1-9 minutes), auto save settingsSet Time: Click Set to enter time setting. Click Up or Down to set time, then click Set to confirm.12/24 Hour Module: Click Up to switchSleep Module: Long press Set without display, enters sleep mode (22:00-07:00 No Display, 07:00-22:00 Display). Display all 0 digits in sleep mode.Set Refresh Time: Long press UP, then click UP or Down. Refresh can be set to 1-9 minutes (Click Set to change LED brightness of 1-5).Set Backlight Color: Click Down to change color. When color changes, it will automatically change color (changes color each day) or fixed color..Package List:1 x Digital Tube Clock Module