Portable supplementary lighting flashlight for diving shooting; 8 x Cree XM-L2 U2 LED 5000K color temperature luminous flux up to 5200lm 4 x Cree XP-E N3 luminous flux up to 400lm and 2 x purple light and 2 x UV light; 120 degree side lighting; Professional battery capacity indicator convenient to know the remain capacity; PWM signal processing + constant current drive circuit; Powered by 4 x 18650 batteries waterproof underwater 100 meters; Professional microcomputer chip low battery indicator light and low battery protection; Unique electronic type battery reverse protection it will not damage the flashlight even the battery is reversed; Aviation aluminum professional thicken hard oxidation treatment housing anti-seawater corrosion; With unique explosion-proof equipment increase the safety immensely