Thread: Battery fluorescent torch renovation
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Harry Bloomfield, Esq. Harry Bloomfield, Esq. is offline
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Default Battery fluorescent torch renovation
has brought this to us :
close to 99% of fl tube failures are filament burnout. Check continuity
between the 2 pins at each end. If either end is o/c it's a deadun - though
there are ballasts that can get such tubes going.

The end filaments are not used as heaters when an invertor is involved,
instead they rely upon creating a high voltage / high impedance between
the ends, which is enough to get them to strike.
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