Line Lights and Lure illuminators attract and catch more fish with any bait setup.You do not have to buy dozen of lighted lures.They can be used with your favorite lure,rig or bait for any type of fishing from shallow ponds to deep ocean sport fishing. The topedo shape will not disturb the flow of the water.They have 4 modes Steady on ,two flashing modes and off. Runtime up to 200 hrs each.