The light in question is rated, Waterproof: IPX-8 waterproof 2 meters by Imalent.

Submerge it if you wish, it should not leak… period. As said above, probably a good idea to check & lube the O-rings first. BUT, the bottom line is it should not leak above 2 Meters.

If it did, they owe you another light or fix that one under Warranty. That also is the bottom line. :wink:

If you want to try and dry it out yourself to see if it still works OK…… do what Firelight2 said. Take it as far apart as you can, put the head & any other part that contains springs & electronics in a baking pan, & cover with dry uncooked rice.

Warm the oven a bit, NOT MUCH… JUST A BIT; around 125 F - 150 F.
Turn oven OFF, pop in the pan and close the door… leaving it just barely cracked open.

Let it sit for a day or two.

Reassemble & see what you’ve got.

EDIT… Or use a “sealed container” as Firelight2 said & forget the oven part.

Edit 2: Be careful with the reflector/optics . Don’t touch the reflective part with anything or screw it up. Set it aside in a safe place.