I used two of these to mount front turn signals on my golf cart. They are very sturdy, but a bit bulky. They have a few different sizes, and all are the same bracket with just a different size hole. This one has a particularly small hole, and it feels like the bracket is too big because of that, but it's not a big deal.
The lights I used were 2" LED marker lights sold by Online LED Store on Amazon, and they were a perfect fit.