O-rings enhances waterproof performance. It’s more waterproof than most flashlights if used on land. Turn on the flashlight before diving, make sure the flashlight’s head and bottom are screwed tightly in case of water floods into the flashlight underwater.

O-rings enhances waterproof performance. It’s more waterproof than most flashlights if used on land. Turn on the flashlight before diving, make sure the flashlight’s head and bottom are screwed tightly in case of water floods into the flashlight underwater.