1The lighting effect is good, using 3 x XHP70.2 LED lights, the highest luminous flux can get 15000 lm, and the LED service life can get 100,000 hours. 2Manual dimming mode: 100% strong light 50% medium light25% low lightreading light 2%SOS. Doubleclick the switch to start the flashing function, doubleclick again to enter the signal flashing, and press and hold the switch for 3 seconds to turn off in any function. 3Unique appearance design, black anodized treatment, aviation aluminum alloy barrel, stylish and generous appearance, easy to hold and use for lighting. 4Good condensing effect, aluminum alloy vacuum plating orange pattern lamp cup, high reflection effect, low light loss, perfect light spot, high temperature resistance of the plating layer on the surface of the reflector, not easy to fall off, durable. 5Wide range of applications, suitable for diving, fishing, hunting, underwater, fishing, salvaging, camping, camping, etc., charged electricity indicator switch, real-time control of electricity. Item Type: Strong Light Flashlight Material: Aluminum Alloy Weight: Approx. 581g / 20.5oz Color: Blue LED: 3 x XHP70.2 LED lamp beads Brightness: 15000LM LED Lamp Service Life: 100000 hours Discharge Time: 2 hours Applicable Battery: 2 or 3 x 26650 lithium battery power supply (not included) Head Diameter: Approx. 76mm / 3.0in Tail Diameter: Approx. 36mm / 1.4in Length before Installing Extension Tube: Approx. 239mm / 9.4in Length after Installing Extension Tube: Approx. 302mm / 11.9in Waterproof Rating: IP68 1 x Flashlight(Battery Not Included) 1 x Sling 1 x Extension Tube 1 x Battery Tube 2 x Waterproof Ring 1. Please allow 1& 8209;2cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.