Smart brightness adjusting ability to automatically enter high light mode under water Waterproof rate IP68, workable up to 40m underwater Support Bluetooth APP remote control (only workable in abovewater mode) Battery level indication gives convenience and utility Selectable mounting methods: 1/4' screw or 1/4' to 1' ball joint 13 FX modes and freely adjustable brightness WT25D support fast charging through USB Type-C port