For those of you that have had and fixed a leaking pool light conduit, which method did you use? As far as I have been able to find, there are 3 different methods that may be used:

1. Putty around the cord as it enters the conduit.
2. 100% pure silicone (squirt into the light conduit and around the end of the conduit to seal up the exit for the water)
3. Either a 3/4" or 1" light cord stopper

I think I favor option 3 for simplicity purposes.

Anyone have any advice on what you did and how it turned out?