lighting performance: A powerful clampon light head provides penetrating illumination in dark underwater environments, improving visibility and exploration safety. Freedom of movement: Detachable bracket enables hands use, allowing you to focus on diving tasks without holding the light. Exceptional water resistance: Multilayer silicone waterproof ring is designed to withstand extreme conditions, making it suitable for deep dives and underwater teaching scenarios. Extended battery life: A 5000mAh battery delivers up to 10 hours of operation, reducing interruptions from battery changes. Use scenario: Night dives or exploration in dark waters where strong, reliable lighting is essential for navigation and safety. Use scenario: Underwater teaching or demonstrations where the light needs to be hands for instruction and demonstrations. Use scenario: Prolonged or deep dives that benefit from extended battery life to minimize interruptions and downtime.