For the DIY KIT version, we will provide assembled manaul, but still needs you have welding ability and electronic knowledge to solder, or else we recommend assembled version. Douk Audio Studio is not responsible for man-made damage or unsuccessful assembly, please note this before placing a order. There is DC 170V high voltage when power Nixie tube clock on, don’t touch the bare wiring part, and please mount the glass case before powering it on or doing tests. Parameters: Tube model: 6IN-12 Time format: 24H Working voltage: DC 12V Case material: wood plate+glass case. Packing List: 1 Clock 1 Power Supply 1 Assembled Manual. All items in stock. Please note that there are certain circumstances that we unfortunately can not have control i. We appreciate your great understanding. We offer best price products to worldwide. Office time: Monday to Saturday, CST: 9:30-18:30. Since you and us may located in the different time zones, please allow us to respond you within 24 hours on office time. We will respond you within 48 hours on holidays.