If the housing were thinner, then they could hang UNDER the rail and the stud could be used to hold the existing rubber mounted worklights too. The rubber mounted worklights do not have an integral mounting stud, they come on a tilting base that is then bolted in place. IF the strobe body was thin enough (which it is not) then the strobe's stud could serve double duty to hold both lights in place.
I am thinking that I could cut a small piece of metal that would bolt were the current flood light is mounted. That piece of metal would project out from the gutter rail about 1.5" and it would have a hole in it. That hole might then be used to mount BOTH the current flood light on top, and hang the strobe under, using the strobe's stud. That would have the strobes mounted high up, which would be a good thing.
Before I do that, I want to keep looking for a surface mount unit.
I am thinking that I could cut a small piece of metal that would bolt were the current flood light is mounted. That piece of metal would project out from the gutter rail about 1.5" and it would have a hole in it. That hole might then be used to mount BOTH the current flood light on top, and hang the strobe under, using the strobe's stud. That would have the strobes mounted high up, which would be a good thing.
Before I do that, I want to keep looking for a surface mount unit.