High brightness underwater illumination with reliable performance - Brightness and longevity: uses a high power XHP70 LED, up to 10000 lm, with an LED life of up to 100000 hours. - Flexible lighting modes and signaling: stepwise brightness with five levels plus SOS — strong power, 50%, 25%, 2% (reading light), and SOS. Double-click to activate burst flash, double-click again for signal flash. Long press the switch in any mode to turn off within 3 seconds. - Durable, ergonomic silhouette: aviation aluminum alloy body with black anodized finish for a premium feel. Includes a power indicator switch for real time power awareness. - Optimized optics and beam stability: aluminum alloy lamp head with vacuum electroplating orange pattern offers high reflectivity and low light loss, greatly enhancing beam concentration. The reflector surface resists high temperature and is not prone to peeling. - Broad range of applications: suitable for diving, fishing, hunting, underwater work, salvage operations, camping and other outdoor scenarios. - Practical use scenarios: 1) Night diving requiring a bright, broad beam and quick SOS signaling. 2) Underwater salvage tasks where stable, focused illumination is essential. 3) Outdoor camping or emergency lighting in low light environments.