gap between pier and post mount light
I have a post mount light on a brick pier. I just replaced the light and the new light has a slightly shallower base than the old one. As a result, there is a gap between the top of the pier and the bottom of the lamp (click on the picture to see a bigger copy):
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I'm trying to figure out a way to fill in the gap (right now it's about 1/4" - it can be made bigger by lifting up the lamp a bit if there is an option for filling a larger space).
I was going to fill in the space with with a siliconized acrylic caulk and paint it but ... honestly I find caulk to be a bit of a pain to work with in a situation like this and it seems like a bit large of an area to fill with caulk (1/4" high, 3/8" deep, about 11" around). I'm also not sure how much of a pain it would make removing the light at a later date.
I thought about putting a post mount adapter there but I suspect the post mount is a bit tall and the adapter would have a huge gap, too.
Does anyone have any ideas about how to fill in the space?
I've cross-posted this on the home repair forum, too.