fluorescent tubes and voltage

[User]

 

[classic33]

http://www.stufinnis.co.uk/cfl.html

 

[classic33]

Free electric from overhead powerlines. There's a night walk where all the lighting is provided by tubes under powerlines.

 

[gbb]

That's made me wonder now, I've brought loads of 8w tubes for emergency lighting over the years...ive never specified their use or voltage, they just come as 8w tubes.
Is voltage even relevant?

 

[Piemaster]

How about an LED replacement? Less power use, longer life.