Lighting, Light Fixtures, Ceiling and Exhaust Fans - recessed light keeps blowing

i recently installed two recessed lights on same switch over shower during remodel. a couple of days ago one light went out so i took bulb out and it was blown. i replced it and the new one blew within 10 minutes. until the other day they worked fine. what the heck?

Is this shower luminaire is open type if so this is very dangerous all the luminaire above shower useally are enclosed.

and the other thing is with shower luminaire they are very picky with wattage ratings.

because the reason why the bulb exploded because the condastion build up and when the condsationed water drop to hot bulb it will useally expoled.

Merci, Marc

if this is the aluminum corroding, the best way to help, is to coat the inside of the aluminum socket with vaseline or weather proofing compound. moisture and heat, fuses the bulb to the socket. if its always burning out, the base of the bulb is not reaching inside the recessed socket deep enough and some arcing may be going on, make sure the centre tab of the socket is well lifted high from its support ... WITH THE POWER / FUSES REMOVED from the circuit !!! the bulb will unscrew really easy, years from now!