Underwater Blue LEDS

There is a boat in Chatham marina with set of blue undewater lights.
They radiate a sort of dull glow around the stern if you look hard enough, especially on freezing cold December evenings.
Do believe the owner was actually seen on the boat once. :)
 
Underwater lights per se are great so I am not sure if the above is Re the colour or the principal.
In the med we swim at night on anchor and you get a lovely effect. Also returning to the boat late on the rib is safer and nicer with them on
 
At that price etc I might have been tempted but then I think of the potential for galvanic corrosion and immediately go right off them. I think if you a partial to such deviancy it is worth spending the bucks for a guarantee of sorts you wont come back to a Alka Seltzer
 
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