I have a t8 florescent tube, which is lighting up, but very dim. I have changed the starter, checked the ballast which shows a reading on the multimeter, and the tube shows no sign of it dying (ie no blacking). Its not actually that old, maybe 4 years? ; (standard on/off switch no dimmer on cuircuit)
How can I verify what is wring please? Thank you
How can I verify what is wring please? Thank you