Russian IN-21 nixie dot tube. It's perfect for clock projects as a colon separator. Also can be used for any other application that requires small and nicely glowing light.

Glow color: orange-red;

Brightness: > 100 cd / m²;

Power supply voltage: 220V;

Support discharge when powered: 60-90V;

The occurrence of discharge at a voltage: 110V;

The current display: 0.5 - 1.5mA;

Warranty life: > 3000h;

Socket: E-10;

Tube size: 10 x 36mm.