Help Need With Rectangular IES Light

Hi, I have downloaded a lot of IES lights and they all seem to be conical, having a bright spot at the top and dispersing light towards the bottom. I am trying to add light below a rectangular LED strip, it looks quite weird with these conical/round IES lights. Any suggestions? (I tried rectangle lights, but the light is not diffusing enough) Any help would be much appreciated. I can upload pics if needed.

download the IES viewer (free) so you can examine a given light. many manufacturers have IES files for their products which can help in the search. for some of my projects the client lighting designer spec’d some LED panel rectangular lights for their broad wash effects. but you’d have to make the call on what will work.