fluorescent bulb size

[keith2511]

I have a bulb that is over 20 years old and has started to flicker. I've replaced the starter switch but the bulb continues to flicker. I'm going to buy a new bulb but the size seems odd. It is 34mm in diameter and the pins are 12mm apart.

A T8 seems too narrow and a T12 too wide.

Grateful for advice on what to buy.

Thanks

 

[westward10]

What length/wattage is the tube.

 

[keith2511]

What length/wattage is the tube.

Thanks for your reply. The body is 1500mm but the printing on the bulb has worn away and I can't see any wattage information.

 

[westward10]

You need a 1500mm 58w T8 tube. Modern tubes have a smaller diameter but the pin configuration is the same.

 

[keith2511]

You need a 1500mm 58w T8 tube. Modern tubes have a smaller diameter but the pin configuration is the same.

Great. Thanks so much for your help