Buoy light Jamas Marker light for fishing nets, fishing lines and pots/traps. Led-light used for finding fishing nets, fishing lines and pots/traps in the dark. The light is 16 cm long and has a strong flashing light. Uses 2 AA-batteries ( not included ). The light automatically turns off when it's bright outside, and therefore the battery has a long lifespan. The light floats straight up and down in the water.