Lighting fixture having a screw lock lamp support

A light fixture for use with a base plate fixable to a smooth surface, comprising:

• a light assembly supported on the base plate and including a lamp ballast positioned at the opening within a ballast housing having a threaded boss projecting at a first end and a flat surface surrounding the boss;
• the base plate having a threaded opening, a flat surface surrounding the opening with a means for securing the base plate to the smooth surface;
• wherein the boss is threaded to the base plate to removably secure the light assembly to said base plate;
• a means for retaining a fluorescent lamp near the base plate said means associated with a second end of the ballast housing;
• wherein the ballast housing is rotatably drawn flat abutting the flat surface of the base plate for a binding frictional engagement of the light assembly with the base plate, whereby the light assembly is secured to the base plate by a manual assembly that obviates the need for any special tools, while the light assembly is readily removable for replacing a defective ballast by twisting the ballast housing.