4 x Cree XM-L2 U2 white light + 2 x Cree XP-E N3 red light + 2 x purple light LED + 2 x UV light LED; 120 degree side lighting; Double 613 stainless steel magnetically controlled switch double switch supports open independently and lights at the same time for different environment; 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 it will remind the person to go ashore and protects the battery from over-discharging; Unique 4-light switch untraditional pattern design increase the use of light underwater greatly; Adopts thicken and clear PC lens; 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