Review on 🌊 Suptig High Power Dimmable Waterproof LED Video Diving Light - Fill Night Light for Underwater Diving, Waterproof up to 147ft (45m) - Compatible with GoPro Hero 6/5/5S/4/4S/3+, SJCAM SJ4000/SJ5000, YI Action by Andy Edwards

UPDATE: Attempted repair did not work, returned. Don't use more than 100 feet lol. This light is great when it dived less than 100 feet into the pit cenote in Playa and flooded part of the switch. Touch point where the switch touches the button in the housing. Blasting this contact point with about 90% isopropyl alcohol will clean it and the light can be cycled off and on again. Rubbing alcohol is non-conductive and safe for all electronic devices. If your light goes into an always-on state, this will fix it.