Abstract: A fluorescent lamp includes a ballast releasably connected to an adapter in a bayonet style connection. The adapter includes a locking tab for preventing removal of the adapter from an electrical socket once the adapter has been installed in the electrical socket. The fluorescent lamp has a lamp tube. The lamp tube is preferably connected to a base in a manner to minimize the total height of the fluorescent lamp. The lamp base is preferably provided with a recess in which contact pins are connected to the lamp base. The lamp may be directly connected to the ballast. The lamp tube may be arranged in a coil having a greater radial outer extent than the base or than the ballast.

Abstract: A rail lighting system includes an adapter having contact members with elongated portions. A body having an opening for a rail receives the contacts such that the elongated portions extend adjacent the rail. A wedge includes members that engage the contacts to urge the elongated portions toward the rail. The wedge is secured to a cap that threadedly engages the body. The rail includes at least one conductor in opposite end portions of the rail with respect to its depth. The conductors of the rail may include a single conductor or, alternatively conductors on opposite sides of the rail. A lighting fixture spring clip includes sets of opposite tangs including a first set having V-shaped end portions to engage a notched lamp base and a second set having curved end portions for engaging an enclosure barrier.

Abstract: A rail lighting system includes an adapter having contact members with elongated portions. A body having an opening for a rail receives the contacts such that the elongated portions extend adjacent the rail. A wedge includes members that engage the contacts to urge the elongated portions toward the rail. The wedge is secured to a cap that threadedly engages the body. The rail includes at least one conductor in opposite end portions of the rail with respect to its depth. The conductors of the rail may include a single conductor or, alternatively conductors on opposite sides of the rail. A lighting fixture spring clip includes sets of opposite tangs including a first set having V-shaped end portions to engage a notched lamp base and a second set having curved end portions for engaging an enclosure barrier.