1, input: Micro-USB 5V 1A;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 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: function: 24 hour mode, time display, anti poisoning program (every 10 minutes refresh the monitor), no alarm, remote control is not supported IN14 Nixie Clock User Manual Function: Colors back light(7 colors) Sleep module(22:00~07:00 no display. 07:00~22:00 display) Refresh time setting(1~9 minutes) 3,Opertate: 3.1.Set Time: Click "SET" key into setting time. Click "Up","Down" to set time, and click "Set" to . 12/24 hour module: Click "Up" key to change Sleep 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. Manufacturing requirements: Tubes white pin need to PCB white pin. colour: blue Material: metal +pc size: about 187x48mm Package Contents: 1x circuit board Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!