Help Identifying A light

[NordicViper]

I have a pair of these lights. I have attached an image of them. Im guessing they are for a boat. Only wording on it says Sonar. Any help is greatly appreciated.

 

[jamie N]

Hi Nordic Viper. Welcome to the forum.
The glass looks very solid, as if it's reated for depth.
Is it possible for you to take a picture of the back to see the connector as clearly as possible please, that would help a great deal I think.

 

[Easticks28]

Hi Nordic Viper. Welcome to the forum.
The glass looks very solid, as if it's reated for depth.
Is it possible for you to take a picture of the back to see the connector as clearly as possible please, that would help a great deal I think.

Or altitude.

 

[jamie N]

The word sonar gave me a nudge towards my own discipline!