I think the Huey gun mounted searchlights are a bit weak. The light doesn’t seem to extend very far.
these are images of the searchlight in action, 2 pointed forward from ground level and the other pointed towards the ground from 40m above ground. It doesn’t really illuminate much and is barely more powerful than the hand carried flashlights and these are supposed to be powerful searchlights capable of night time CSAR in dense triple canopy from a hundred meters above ground