Trailer lights of course

[Blue Agave]

Everything fails!  LOL  but the light bulb is guaranteed to burn out!

Let's see, $100 for a pair of LED waterproof lights or $3.50 for a set of bulbs?  Pretty simple math in my book.   Yes bulbs do burn, that is certain.  I have not replaced a bulb in 9+ years on my submersible lights. If one is replacing bulbs often there must be a short.