1、Function: The nixie tube clock can switch between 12 and 24 hour display mode, has antipoison program which will re display every 1 minute 2、High Accuracy Clock Chip: This glowing tube clock adopts high accuracy chip, the time display error can be about one minute per year 3、Multi Color Display: The clock can automatically switch red, purple, yellow, pink, green and blue display every day, can also adjust or turn off manually 4、Automatic Shutdown: This nixie tube clock can automatically shut down from 22:00 to 7:00, can save power and increase battery life 5、DIY Kit: This nixie tube clock kit can be assembled by yourself, with complete accessories, and easy installation 1 x IN14 DIY Case2 x Glass Tube3 x Fastener4 x Illuminated Light6 x Copper Sheet1 x Module Item Type: Nixie Tube Clock DIY KitMaterial: Beech and PCBPower Input: DC12V 1AMemory Power Supply: Lithium manganese battery CR1220 (not included)