DC 12V STM8S005 Control IN14 Tube Digital LED Clock Lamp Clock Chip IC Micro USB Interface Clock Board Module Diy Introduce: 1. Input: 11V13V, 1A, DC power (5.5-2.1) 2. Using STM8S005 as the main control, built-in procedures, welding light pipe can be used directly. 3. Support seven clock color display (containing RGB lamp). 4. The use of imported high-precision clock chip, a year less than 1 minutes error 5. Using integrated IC drive program, the display is more stable and reliable 6. Size: 187x48mm 7. Function: 24 hour mode, time display, anti poisoning program (every 10 minutes refresh the monitor), no alarm, remote control is not supported, No time switch machine