Laluz 1000lm Cree Xml-u2 Scuba Dive Torch 5 Modes 150m Underwater(without Battery) Professional aluminum light cup, with 100 meters beam range underwater 150 meters water resistant,Length can be shortened, easier to use 4mm thick tempered glass with a high compressive strength Magnetic control switch,4 levels of light brightness, with strobe mode 4*C dry batteries(Not Included)