Waterproofness of UVC-emitter

Is the bulb of UVC-emitter with designation XST-3535-UV-A60-CE270-00 water proof and can exposed to sea water?

Greetings,

While the silicone lens of the LED does provide some short-term protection against non-reactive liquids, it is permeable at a microscopic level and will allow contaminants to enter in amounts that are sufficient to cause damage if exposed for long periods.

The device should not be considered waterproof, and direct exposure to seawater is not recommended.