For the DIY KIT version, we will provide assembled manaul, but still needs you have welding ability and electronic knowledge to solder. We are 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. Working voltage: DC 12V. Case material: wood plate+glass case. Please allow minor errors due to manual measurement. Item color displayed in photos may be showing slightly different since monitors are not calibrated same. We are committed to resolve all issues in a friendly and satisfactory manner. Only unused, undamaged and original condition item can be qualified for a return. Is very important to us.