A lighting apparatus comprises a circular fluorescent lamp (53) having inner and outer circular portions (52, 51) arranged coaxially and having outer diameters different from each other, the inner circular portion (52) having an outer diameter of 285 mm to 310 mm and comprising a first arc tube having a tube diameter of 15 mm to 21 mm and the outer circular portion (51) having an outer diameter of 360 to 390 mm and comprising a second arc tube having a tube diameter of 15 to 21 mm. The fighting apparatus further comprises an apparatus body (21) to which the circular fluorescent lamp is assembled. The apparatus body (21) is provided with light reflection member (31) adapted to reflect a light from the fluorescent lamp means. <IMAGE>
