Review on High Power Underwater Dive Light 147ft (45m) - HONGDAK Dimmable Waterproof LED Video Fill Night Light for Hero 8 7 6 5 5S 4 4S 3+/3/2 SJCAM/Xiaoyi Action Cameras and More by Todd Nordine

Great little light. Ideal for low light conditions with my GoPro. Illuminates a fairly large area. I won't be able to use it underwater any time soon, but I tested it in the bathtub to make sure it's waterproof and working smoothly with no leaks. The light on button is very tight so you have to press it pretty hard, but I'm sure it will loosen up a bit with continued use. Great addition to my camera.