Abstract: A lighting device for use with a fishing line is the subject of the present invention. A base support which is positionable on the ground or floor of a boat mounts an elongated transparent tubular member. Within the tubular member is contained a light bulb, battery and gravity activated switch. The tubular member is pivotally mounted relative to the base support and will always assume a vertical upright position regardless of the angle of the supporting surface. A pair of V-grip couplers at the top and bottom of the tubular member are adapted to releasably receive the fishing line. When the fishing line moves in response to a fish striking, the tubular member will be pivoted causing the fluid switch to close thereby lighting the bulb.