Abstract: An airport light fixture is designed to withstand the severe vibrations and high wind velocity encountered in the take-off and landing operations of jet aircraft. The light fixture includes a pedestal and lamp base provided with spherical portions of different curvature which engage only at peripheral mating surfaces. When the lamp base and pedestal are clamped together, e.g., by a set of bolts, considerable pressure is exerted between the spherical portions to hold the pedestal and lamp base in firm engagement at the peripheral mating surfaces. In addition, the light fixture includes an improved lens mounting arrangement to firmly secure its lens on the lamp base and yet permit the lens to be conveniently removed for repair of the light fixture.