Blue Sea Systems 12v LED Ind. Alternative

I keep having to replace my switch indicator LEDs. They are the Blue Sea Systems 12V red LEDs. I use only solder connections with heat shrink when installing but it seems as if water must be entering through the face of the bulbs and corroding the LEDs internally. When they begin to go bad they begin to bleed corrosion out of they face. Anyone else having the same issue or have dealt with it? They seem to only be able to make it through one season, if that. Looking for a solution to the issue or a better product. Thanks!