Lightwish Underwater 30M (131 Feet) Waterproof Diving Video Light (CRI95+) With Adaptor in Bottom For GoPro Hero4 Silver Black Hero 4 3+ 3 2 Session High battery capacity: 1050mAh, lasting for 1.5hrs(high light); 4hrs(low light); 6hrs(SOS mode) 30M /98.4ft underwater, nice waterproof performance High/low light and SOS mode, 300Lumen max It comes with buckle mount and wrench, quick release and easy installation Compatible brands: GoPro Hero4/3+/3/2/1, just push into the card slot above