Smart brightness adjusting ability to enter high light mode under water Waterproof rate IP68, workable up to 40m underwater HSI mode has 36000 colors Color temperature is precisely adjustable from 1800K to 10000K Support Bluetooth APP remote control in abovewater mode Smart battery level indication gives convenience and utility 37 FX modes and freely adjustable brightness RGBW mode allows separated adjustment of red, green, blue and white LED WT40R support fast charging through USB Type-C port