LED Aquarium Fish Tank Tube Strip Light Lamp Waterproof It is widely applied for fish tank, cisterns, rockeries, pool and subaqueous occasions. Completely waterproof, transparent glass tube, portable size Low voltage operation, no harm to fishes and human body Apply high borosilicate glass tube, high temperature resistant, high transparency LED QTY:18 Suitable for 7.8Inch~11.8Inch Aquarium LED QTY:30 Suitable for 11.8Inch~15.8Inch Aquarium LED QTY:42 Suitable for 15.8Inch~19.8Inch Aquarium LED QTY:57 Suitable for 19.8Inch~23.8Inch Aquarium