DIY Acrylic Nixie Tube Pcba Kit Digital Clock RGB Assembled Nice Gift. Set Time: Long Press "Down" key into setting time. Long Press "UP", while no display, into sleep module22:0007:00 no display.Display all "0"number, out of sleep module. When color refresh that means it is into change color automatic (every day change one color), or color is fixed. Size: 114x46mm / 4.48x1.81inch. 1 Piece Circuit Board 1 Piece Acrylic Enclosure Box 1 Piece Screw Kit. Please verify your address during checkout. We are not responsible for any wrong or undeliverable addresses. People always bought together with.