A fluorescent lamp lighting device includes a fluorescent light bulb having an
electrode filament and an electronic lighting circuit substrate for lighting the
fluorescent light bulb, wherein a capacitor connected in parallel with the fluorescent
light bulb, a positive characteristic thermistor connected in parallel with the
capacitor, and a negative characteristic thermistor connected in parallel with
the electrode filament are mounted on the electronic lighting circuit substrate,
and wherein the negative characteristic thermistor, having a mounting surface,
is mounted in such a manner that the mounting surface is in abutment with the electronic
lighting circuit substrate. The positive characteristic thermistor and the negative
characteristic thermistor are preferably mounted on mutually different mounting
surfaces among the two mounting surfaces of the obverse and reverse surfaces of
the electronic lighting circuit substrate.