Lumica manufacture single use, bright chemical glow sticks for night diving or diving in poor visibility. Established in 1979 in Japan Lumica lights are used around the world for a range of industries. Chemical light sticks are great for scuba divers because pressure does not affect them and they can be attached almost anywhere. Keep one in your pocket or clipped to a D-ring and you can activate it if and when you need it. Our Simply Scuba range of Lumica light sticks come in a variety of colours.