Miniature Neon Bulb 6mm Diameter Mains Indicator Cold Cathode Glow Lamp

This is a pack of standard neon indicator bulb such as you find in mains power plug-tops and trailing sockets. The maximum length of the glass is 13mm and the diameter is 6.5mm.

In the second picture showing the lit item, it is running on 253 Vac mains via a 680K 0.5W resistor. For 110V mains use a 150K resistor. The stated lifetime is 25,000 hours under these operating conditions. When fitting a replacement, note that the resistor will often be hidden under the insualtion in one of the wire leads.

Technical Measurements on one sample:

In the main picture driven from 253 Vac mains with a 680k Ohm resistor in series the measured A.C. voltage across the bulb was:

Standard 57 Vac (0.29mA)