Hi,
My friend told me to make sure to get IP65 or above for outside wall lights and I've just been shopping where the majority are IP54, the woman there looked at me like I had two heads when I asked and she said that if they are marked as for outdoors then they are made to withstand what we get from Mother Nature.
How much is it something to worry about? The majority I've found I like online are 54, as well.
Thanks!