1、Using STM8S005 as the main control, built-in procedures, welding light pipe can be used directly. 2、Support seven clock color display (containing RGB lamp). Added USB interface power supply, more convenient to use. 3、Using imported high precision clock chip, a year less than 1 minutes error. 4、Adopts integrated IC drive program, the display is more stable and reliable. 5、Functions: 24 hour mode, time display, anti-poisoning program(refresh the monitor every 10 minutes), no alarm, no remote control, no time switch. 1 x IN14 Digital Clock Module Board Condition: 100% Brand NewItem Type: Digital Clock Module BoardModel: IN14Material: PCBColor: BlueQuantity: 1PCSInput: 11V~13V，1A，DC Power（ 5.5- 2.1）Power Supply: 1 x CR1220 Button Battery(Not Included)Weight: Approx. 40gSize: Approx. 187x48mm/ 7.36x 1.89inchSet Time: Click "SET" key into setting time. Click "Up","Down" to set time, and click "Set" to finish.12/24 hour module: Click "Up" key to changeSleep module. Click "SET" long, while no display , into sleep module(22:00~07:00 no display. 07:00~22:00 display). Display all "0"number,out of sleep module.Set refresh time: Click "UP" long, and click "UP"or "Down". refresh can be set 1~9 minutes,Set back color: Click "Down" to change color. when color refresh that means it is into change color automatic (every day change one color),or color is fixed.