Features 1、RETRO AND PRACTICAL: This module is used to assemble an impressive digital tube clock with a retro design, adding unique charm to any room 2、ACCURATE TIMING: Equipped with a high performance clock chip, this photoglow tube clock module boasts impressive accuracy with less than one minute error per year, ensuring punctuality 3、EASY TIME SETTING: Simply press Set key and adjust using Up and Down key for easy time setting of glow tube clock module, suitable for users of all ages 4、24 HOUR DISPLAY: The digital tube clock module supports both 12 hour and 24 hour modes, providing flexibility in time display for different preferences 5、COLORFUL BACKLIGHT: With glow tube clock circuit board, users can choose from multiple backlight colors for the clock display, with the option to switch between automatic color changes or fixed colors Specification Item Type: Photoglow Tube Clock Module Input Voltage: 5V 2A Battery: 1 x CR927 key battery(not include) 2. Functions: 2.1. Time 2.2. Backlight color (multi color switch) 2.3. 12 24 hours module 2.4. Sleep module (no display from 22: 00 to 07: 59; 08: 00 to 21: 59 display) You can enable or disable the function 2.5. Set refresh time (1 to 9 minutes) to automatically save 3. Operating: 3.1. Set The Time: Click Set key to enter the time. Click Up or Down to set the time, and then click Set to finish. 3.2. 12 24 Module: Click the Up key to change. 3.3. Sleep Module. Click Set key long, but no display, enter the sleep module (22: 00 ~ 07: 00 no display; 07: 00 ~ 22: 00 screen). Displays all 0 numbers outside the sleep module. 3.4. Set The Refresh Time: Click UP for a long time, and then click UP or Down. Refresh can be set for 1 to 9 minutes (click Settings to change 1-5 LED brightness). 3.5. Set The Back Color: Click Down to change the color. When the color refreshes, this means that it automatically changes the color (one color per day) or fixes the color. Package List 1 x Photoglow Tube Clock Module