Abstract: A golf swing training device includes an aerodynamically shaped housing which may be attached by a suction cup to the upper surface of a golf club, preferably a wood because of the larger upper surface area. The housing contains a pair of batteries for selectively illuminating a light source, preferably a red LED, protruding from the top of the housing. The illuminated light source creates a visual "track" of light as the as the club is swung and helps the golfer visualize the path of the club head and the swing plane.